Ôn tập chung
<h3 id="1">1.</h3> <p>a) Tính nhẩm:</p> <p>3x4 ; 4x8 ; 7x3 ; 6x9</p> <p>24:6 ; 40:8 ; 27:9 ; 18:3</p> <p>7x8 ; 8x7 ; 56:7 ; 56:8</p> <p>b) Đã tô màu vào một phần mấy mỗi hình sau?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b58-h1-1664728094.jpg.webp" width="649" height="150" alt="hinh-anh-on-tap-chung-1184-0" title="hinh-anh-on-tap-chung-1184-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="2">2.</h3> <p>a) Đặt tính rồi tính:</p> <p>34:2 ; 121x4 ; 85:2 ; 669:3</p> <p>b) Tính giá trị của các biểu thức sau:</p> <p>54-0:9 ; 54:9x0</p> <p>(36+0)x1 ; (36+1)x0</p> <h3 id="3">3.</h3> <p>Một xe vận chuyển hàng trong siêu thị mỗi chuyến chở được nhiều nhất 5 thùng hàng.</p> <p>a) Hỏi chuyến xe đó cần vận chuyển ít nhất mấy chuyến để hết 55 thùng hàng?</p><div class="google-auto-placed ap_container" style="width: 100%; height: auto; clear: both; text-align: center;"><ins data-ad-format="auto" class="adsbygoogle adsbygoogle-noablate" data-ad-client="ca-pub-8123786206223951" data-adsbygoogle-status="done" style="display: block; margin: auto; background-color: transparent; height: 280px;"><div id="aswift_6_host" style="border: none; height: 280px; width: 741px; margin: 0px; padding: 0px; position: relative; visibility: visible; background-color: transparent; display: inline-block;"></div></ins></div> <p>b) Mỗi thùng hàng cân nặng 100 kg. Hỏi mỗi chuyến xe đó đã vận chuyển được bao nhiêu ki-lô-gam hàng?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b58-h2-1664728354.jpg.webp" width="363" height="353" alt="hinh-anh-on-tap-chung-1184-1" title="hinh-anh-on-tap-chung-1184-1" loading="lazy"></p> <h3 id="4">4.</h3> <p>a) Tìm và đọc tên hình tam giác, hình tứ giác dưới đây:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b58-h3-1664728400.jpg.webp" width="628" height="177" alt="hinh-anh-on-tap-chung-1184-2" title="hinh-anh-on-tap-chung-1184-2" loading="lazy"></p> <p>b) Dùng ê ke để kiểm tra xem hình nào ở câu a có góc vuông.</p> <h3 id="5nbsp">5.&nbsp;</h3> <p>Một tấm thảm trải sàn có kích thước như hình vẽ dưới đây. Tính chu vi tấm thảm.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b58-h4-1664728496.jpg.webp" width="405" height="217" alt="hinh-anh-on-tap-chung-1184-3" title="hinh-anh-on-tap-chung-1184-3" loading="lazy"></p> <h3 id="6-quan-saacutet-higravenh-ve-chon-chu-dat-truoc-daacutep-aacuten-duacuteng">6. Quan sát hình vẽ, chọn chữ đặt trước đáp án đúng:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b58-h5-1664728538.jpg.webp" width="680" height="137" alt="hinh-anh-on-tap-chung-1184-4" title="hinh-anh-on-tap-chung-1184-4" loading="lazy"></p> <ol style="list-style-type: upper-alpha;"> <li><img src="/uploads/tinymce/screenshot-2022-10-02-232553-1664728570.jpg.webp" width="27" height="28" alt="hinh-anh-on-tap-chung-1184-5" title="hinh-anh-on-tap-chung-1184-5" loading="lazy"><div> <div class="ads-horizontal-wrapped">
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</div> nhẹ hơn&nbsp;<img src="/uploads/tinymce/screenshot-2022-10-02-232602-1664728587.jpg.webp" width="27" height="29" alt="hinh-anh-on-tap-chung-1184-6" title="hinh-anh-on-tap-chung-1184-6" loading="lazy">.</li> <li><img src="/uploads/tinymce/screenshot-2022-10-02-232553-1664728570.jpg.webp" width="27" height="28" alt="hinh-anh-on-tap-chung-1184-7" title="hinh-anh-on-tap-chung-1184-7" loading="lazy"> nặng hơn&nbsp;<img src="/uploads/tinymce/screenshot-2022-10-02-232602-1664728587.jpg.webp" width="27" height="29" alt="hinh-anh-on-tap-chung-1184-8" title="hinh-anh-on-tap-chung-1184-8" loading="lazy">.</li> <li><img src="/uploads/tinymce/screenshot-2022-10-02-232553-1664728570.jpg.webp" width="27" height="28" alt="hinh-anh-on-tap-chung-1184-9" title="hinh-anh-on-tap-chung-1184-9" loading="lazy"> và&nbsp;<img src="/uploads/tinymce/screenshot-2022-10-02-232602-1664728587.jpg.webp" width="27" height="29" alt="hinh-anh-on-tap-chung-1184-10" title="hinh-anh-on-tap-chung-1184-10" loading="lazy"><div> <div class="ads-horizontal-wrapped">
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</div> nặng bằng nhau.</li> <li><img src="/uploads/tinymce/screenshot-2022-10-02-232553-1664728570.jpg.webp" width="27" height="28" alt="hinh-anh-on-tap-chung-1184-11" title="hinh-anh-on-tap-chung-1184-11" loading="lazy"> và&nbsp;<img src="/uploads/tinymce/screenshot-2022-10-02-232602-1664728587.jpg.webp" width="27" height="29" alt="hinh-anh-on-tap-chung-1184-12" title="hinh-anh-on-tap-chung-1184-12" loading="lazy"> không so sánh được cân nặng.</li> </ol>