Bài 40: Ôn Tập Hình Học Và Đo Lường
<h3 id="luyen-tap">Luyện tập</h3> <p><strong>Ôn tập về hình học</strong></p> <h4>1.</h4> <p>a) Những hình nào dưới đây là khối lập phương?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1001-1662188176.png.webp" width="370" height="145" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-0" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div>b) Những hình nào dưới đây là khối hộp chữ nhật?<p></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1002-1662188196.png.webp" width="376" height="130" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-1" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-1" loading="lazy"></p> <h4>2. Xem hình sau rồi tìm số thích hợp.</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1007-1662188225.png.webp" width="334" height="417" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-2" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-2" loading="lazy"></p> <table style="border-collapse: collapse; width: 99.9265%; height: auto !important;" border="1">  <tbody> <tr> <td style="width: 46.8819%; text-align: center;">Hình</td> <td style="width: 46.8819%; text-align: center;">Số hình</td> </tr> <tr> <td style="width: 46.8819%; text-align: center;"><img src="/uploads/tinymce/1003-1662188274.png.webp" width="58" height="60" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-3" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-3" loading="lazy"></td> <td style="width: 46.8819%; text-align: center;">?</td> </tr> <tr> <td style="width: 46.8819%; text-align: center;"><img src="/uploads/tinymce/1004-1662188286.png.webp" width="82" height="57" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-4" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-4" loading="lazy"></td> <td style="width: 46.8819%; text-align: center;">?</td> </tr> <tr style="height: auto !important;"> <td style="width: 46.8819%; text-align: center; height: auto !important;"><img src="/uploads/tinymce/1005-1662188293.png.webp" width="79" height="75" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-5" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-5" loading="lazy"><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div></td> <td style="width: 46.8819%; text-align: center;">?</td> </tr> <tr> <td style="width: 46.8819%; text-align: center;"><img src="/uploads/tinymce/1006-1662188301.png.webp" width="81" height="73" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-6" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-6" loading="lazy"></td> <td style="width: 46.8819%; text-align: center;">?</td> </tr> </tbody> </table> <p>&nbsp;</p> <h4>3.</h4> <p>a) Lấy 9 que tính xếp thành hình bên.</p> <p>b) Hình bên có mấy hình tam giác?</p> <p>c) Nhấc ra 2 que tính để hình còn lại có 2 hình tam giác.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1011-1662188522.png.webp" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-7" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-7" loading="lazy"></p> <h4>4. Tìm hình thích hợp đặt vào dấu "?".</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1012-1662188615.png.webp" width="694" height="268" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-8" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-8" loading="lazy"></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1013-1662188721.png.webp" width="712" height="310" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-9" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-9" loading="lazy"></p> <h3 id="luyen-tap">Luyện tập</h3> <p><strong>Ôn tập về đo lường</strong></p> <h4>1. Chọn đồng hồ thích hợp với mỗi bức tranh.</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1021-1662188774.png.webp" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-10" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-10" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div><p></p> <h4>2. Chọn câu trả lời đúng.</h4> <p>a) Trong một tuần, nếu ngày 20 là thứ hai thì ngày 22 là thứ mấy?</p> <p>A. Thứ tư&nbsp; &nbsp;B. Thứ năm&nbsp; &nbsp;C. Thứ sáu</p> <p>b) Nếu hôm qua là thứ ba thì ngày mai là thứ mấy?</p> <p>A. Thứ tư&nbsp; &nbsp;B. Thứ năm&nbsp; &nbsp;C. Thứ sáu</p> <h4>3. Đo độ dài mỗi đồ vật sau với đơn vị là xăng-ti-mét.</h4> <p>a)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1031-1662188862.png.webp" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-11" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-11" loading="lazy"></p> <p>b)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1032-1662188871.png.webp" width="334" height="100" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-12" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-12" loading="lazy"></p> <p>c)<img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1033-1662188881.png.webp" width="616" height="111" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-13" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-13" loading="lazy"></p> <p>&nbsp;</p> <h4>4. Trong hình dưới đây, băng giấy nào dài nhất, băng giấy nào ngắn nhất?</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1034-1662189194.png.webp" width="616" height="277" alt="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-14" title="hinh-anh-bai-40-on-tap-hinh-hoc-va-do-luong-358-14" loading="lazy"></p> <h4>5. Chọn câu trả lời đúng.</h4> <p>a) Gang tay của em dài khoảng:</p> <p>A. 10 cm&nbsp; &nbsp;B. 1 cm&nbsp; &nbsp;C. 5 cm</p> <p>b) Bàn học của em cao khoảng:</p> <p>A. 6 cm&nbsp; &nbsp;B. 6 gang tay&nbsp; &nbsp;C. 20 cm</p> <p>c) Bảng lớp học dài khoảng:</p> <p>A. 3 sải tay&nbsp; &nbsp;B. 3 gang tay&nbsp; &nbsp;C. 30 cm</p>