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		<h1>ĐỀ THI KHẢO SÁT CHẤT LƯỢNG ĐỢT 2 – TOÁN 6</h1>
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			<div style="text-align: center;"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><span style="font-size:14.0pt">ĐỀ THI KHẢO SÁT CHẤT LƯỢ</span></b><strong><span style="font-size:14.0pt">NG ĐỢT 2 <span style="font-family:&#039;Arial&#039;,&#039;sans-serif&#039;">–</span> TOÁN 6</span></strong></span></span><br />
<strong><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Năm học 2016 – 2017</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Thời gian làm bài 90 phút</span></span></span></strong></div>
<br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">I. Trắc nghiệm (2 điểm):</span></i></b><span style="font-size:14.0pt"> <i>Chọn đáp án đúng.</i></span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 1.</span></i></b><span style="font-size:14.0pt"> Tập hợp M = {x<span style="position:relative"><span style="top:3.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image002.gif" style="width:29px; height:19px" /></span></span>/ 12 <span style="position:relative"><span style="top:2.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image004.gif" style="width:13px; height:16px" /></span></span>&nbsp;x &lt; 16} gồm các phần tử:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A.&nbsp; { 12; 13; 14; 15}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ;&nbsp;&nbsp;&nbsp;&nbsp; B. {13; 14; 15; 16}</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C.&nbsp; {12; 13; 14; 15; 16}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ;&nbsp;&nbsp;&nbsp;&nbsp; D. {13; 14; 15}</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 2. </span></i></b><span style="font-size:14.0pt">Kết quả phép tính 5<sup>6</sup> : 5<sup>3</sup> là:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A. 1<sup>3</sup>&nbsp;&nbsp; ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; B. 5<sup>2</sup>&nbsp; ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. 5<sup>9</sup>&nbsp;&nbsp;&nbsp; ;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; D. 5<sup>3</sup></span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 3. </span></i></b><span style="font-size:14.0pt">Điền từ còn thiếu vào chỗ trống(…):</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Nếu …………………………………………………thì AM + MB = AB.</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 4. </span></i></b><span style="font-size:14.0pt">Cho 3 điểm M, N, P thẳng hàng và điểm P nằm giữa 2 điểm M, N. Đẳng thức nào sau đây là đúng:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; A. MN + NP = MP&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ; B. MP + PN = MN</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; C. MP – NP = MN&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ; D. MN + MP = NP&nbsp;&nbsp;&nbsp; </span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 5. </span></i></b><span style="font-size:14.0pt">Điền đúng(Đ), sai(S) vào các ô trống thích hợp:</span></span></span><br />
&nbsp;
<table class="Table" style="border-collapse:collapse; border:none">
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			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">T<sup>2</sup></span></i></b></span></span></td>
			<td style="border-bottom:1px solid black; width:540px; padding:0in 7px 0in 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu</span></i></b></span></span></td>
			<td style="border-bottom:1px solid black; width:42px; padding:0in 7px 0in 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Đ</span></i></b></span></span></td>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">S</span></i></b></span></span></td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">1</span></span></span></td>
			<td style="border-bottom:1px solid black; width:540px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Có 2 số tự nhiên liên tiếp là số nguyên tố.</span></span></span></td>
			<td style="border-bottom:1px solid black; width:42px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">2</span></span></span></td>
			<td style="border-bottom:1px solid black; width:540px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Mọi số nguyên tố đều là số lẻ.</span></span></span></td>
			<td style="border-bottom:1px solid black; width:42px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">3</span></span></span></td>
			<td style="border-bottom:1px solid black; width:540px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Có 3 số lẻ liên tiếp là số nguyên tố.</span></span></span></td>
			<td style="border-bottom:1px solid black; width:42px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
		</tr>
		<tr>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">4</span></span></span></td>
			<td style="border-bottom:1px solid black; width:540px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Mọi số nguyên tố đều có chữ số tận cùng là một trong các chữ số 1; 3; 7; 9.</span></span></span></td>
			<td style="border-bottom:1px solid black; width:42px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
			<td style="border-bottom:1px solid black; width:38px; padding:0in 7px 0in 7px; border-top:none; border-right:1px solid black; border-left:none" valign="top">&nbsp;</td>
		</tr>
	</tbody>
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<br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">II. Tự luận (8 điểm):</span></i></b></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 6(2 điểm).</span></i></b><span style="font-size:14.0pt"> Tìm x, biết:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span lang="ES-VE" style="font-size:14.0pt">a) (3 + x). 5 = 10<sup>2</sup> : 4&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; ;&nbsp; b) &#91;(6x – 72) : 2 – 84&#93;. 28 = 5628</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="ES-VE" style="font-size:14.0pt">Câu 7(2 điểm).</span></i></b><span lang="ES-VE" style="font-size:14.0pt"> Thực hiện phép tính:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; a) 5<sup>3</sup>. 2 – 100 : 4 + 2<sup>3</sup>. 5&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;;&nbsp; b) 16: {400: &#91;200 – (37 + 46. 3)&#93;}</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="ES-VE" style="font-size:14.0pt">Câu 8(2 điểm). </span></i></b><span lang="ES-VE" style="font-size:14.0pt">Một số sách nếu xếp thành từng bó 12 quyển, 15 quyển, 18 quyển thì đều vừa đủ bó. </span><span style="font-size:14.0pt">Tính số sách đó, biết số sách trong khoảng từ 200 đến 500.</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">Câu 9(1,5 điểm). </span></i></b><span style="font-size:14.0pt">Trên tia Ox, lấy 2 điểm Mvà N sao cho OM = 3cm, ON = 6cm.</span></span></span>

<ol style="list-style-type:lower-alpha">
	<li style="margin-left:8px"><span style="font-size:12pt"><span style="tab-stops:list .5in"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Tính độ dài đoạn thẳng MN ?</span></span></span></span></li>
	<li style="margin-left:8px"><span style="font-size:12pt"><span style="tab-stops:list .5in"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">So sánh OM và MN ?</span></span></span></span></li>
	<li style="margin-left:8px"><span style="font-size:12pt"><span style="tab-stops:list .5in"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Điểm M có là trung điểm của đoạn thẳng ON không? Vì sao?</span></span></span></span></li>
</ol>
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="NL" style="font-size:14.0pt">Câu 10(0,5 điểm).</span></i></b><span lang="NL" style="font-size:14.0pt"> Tìm n <span style="position:relative"><span style="top:3.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image006.gif" style="width:33px; height:21px" /></span></span>, biết:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style="font-size:14.0pt">1 + 2 + 3 + …+ n = 210</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;-------------------------------------------------------------</span></span></span><br />
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<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span><br />
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<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <b><span style="font-size:14.0pt">ĐÁP ÁN VÀ BIỂU ĐIỂM TOÁN 6</span></b></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Năm học 2016 - 2017</span></span></span><br />
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<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">I.Trắc nghiệm(2 điểm):</span></i></b><span style="font-size:14.0pt"> Mỗi câu trả lời đúng được 0,25 điểm.</span></span></span><br />
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<table class="Table" style="width:640px; border-collapse:collapse; border:none" width="640">
	<tbody>
		<tr>
			<td style="border-bottom:1px solid black; width:64px; padding:0in 7px 0in 7px; height:20px; border-top:1px solid black; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Câu 1</span></span></span></td>
			<td style="border-bottom:1px solid black; width:71px; padding:0in 7px 0in 7px; height:20px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Câu 2</span></span></span></td>
			<td style="border-bottom:1px solid black; width:220px; padding:0in 7px 0in 7px; height:20px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Câu 3</span></span></span></td>
			<td style="border-bottom:1px solid black; width:63px; padding:0in 7px 0in 7px; height:20px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Câu 4</span></span></span></td>
			<td colspan="4" style="border-bottom:1px solid black; width:221px; padding:0in 7px 0in 7px; height:20px; border-top:1px solid black; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Câu 5</span></span></span></td>
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		<tr>
			<td style="border-bottom:1px solid black; width:64px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:1px solid black" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">A</span></span></span></td>
			<td style="border-bottom:1px solid black; width:71px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">D</span></span></span></td>
			<td style="border-bottom:1px solid black; width:220px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">M nằm giữa 2 điểm A và B</span></span></span></td>
			<td style="border-bottom:1px solid black; width:63px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">B</span></span></span></td>
			<td style="border-bottom:1px solid black; width:60px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Đ</span></span></span></td>
			<td style="border-bottom:1px solid black; width:47px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">S</span></span></span></td>
			<td style="border-bottom:1px solid black; width:52px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">Đ</span></span></span></td>
			<td style="border-bottom:1px solid black; width:62px; padding:0in 7px 0in 7px; height:21px; border-top:none; border-right:1px solid black; border-left:none" valign="top"><span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">S</span></span></span></td>
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</table>
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<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span style="font-size:14.0pt">II. Phần tự luận(8 điểm):</span></i></b></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="ES-VE" style="font-size:14.0pt">Câu 6(2 điểm):</span></i></b><span lang="ES-VE" style="font-size:14.0pt"> Mỗi câu đúng được 1 điểm.</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">a) Kết quả x= 2</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">b) Kết quả x= 107</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="ES-VE" style="font-size:14.0pt">Câu 7(2 điểm):</span></i></b><span lang="ES-VE" style="font-size:14.0pt"> Mỗi câu đúng được 1 điểm.</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp; a) Kết quả = 265</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">b) Kết quả = 1</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="ES-VE" style="font-size:14.0pt">Câu 8(2 điểm):</span></i></b><span lang="ES-VE" style="font-size:14.0pt"> Gọi số sách là a quyển (a<span style="position:relative"><span style="top:3.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image006.gif" style="width:33px; height:21px" /></span></span>&nbsp;;&nbsp;&nbsp; 200 <span style="position:relative"><span style="top:3.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image009.gif" style="width:37px; height:17px" /></span></span>&nbsp;500).&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,5đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vì… suy ra a <span style="position:relative"><span style="top:2.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image011.gif" style="width:8px; height:19px" /></span></span>12; 15; 18 nên a<span style="position:relative"><span style="top:2.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image013.gif" style="width:13px; height:13px" /></span></span>BC(12; 15; 18)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,5đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BCNN(12; 15; 18) = 2<sup>2</sup>.3<sup>2</sup>.5 = 180&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,25đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; BC(12; 15; 18) = B(180) = {0; 180; 360; 540; …}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,25đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vì 200 <span style="position:relative"><span style="top:3.0pt"><img alt="" src="https://thcsthanhthuy.xatamhung.edu.vn/file:///C:\Users\ADMINI~1\AppData\Local\Temp\msohtmlclip1\01\clip_image009.gif" style="width:37px; height:17px" /></span></span>&nbsp;500 nên a = 360.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,25đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Kết luận.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,25đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><b><i><span lang="ES-VE" style="font-size:14.0pt">Câu 9(1,5 điểm):</span></i></b><span lang="ES-VE" style="font-size:14.0pt"> vẽ hình đúng&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,25đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; a) Lập luận và tính được đúng MN = 3cm&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;0,5đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span lang="NL" style="font-size:14.0pt">b) OM = MN (vì cùng bằng 3cm)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; 0,25đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span lang="ES-VE" style="font-size:14.0pt">c) Vì M nằm giữa 2 điểm O và N (Theo câu a)</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; <span style="font-size:14.0pt">Và OM = MN = 3cm</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Vậy M là trung điểm của đoạn thẳng ON.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; </span><span lang="ES-VE" style="font-size:14.0pt">0,5đ</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">Câu 10(0,5 điểm): Ta có:</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1 + n)&#91;(n – 1):1 + 1&#93; : 2 = 210</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; (1 + n). n : 2 = 210</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; n.(n + 1) = 420</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; n. (n + 1) = 20. 21</span></span></span><br />
<span style="font-size:12pt"><span style="font-family:&#039;Times New Roman&#039;,serif"><span lang="ES-VE" style="font-size:14.0pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Suy ra n = 20.</span></span></span><br />
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