Luyện tập 4
<h3 id="1-tiacutenh">1. Tính:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b30-h1-1665850642.jpg.webp" width="614" height="79" alt="hinh-anh-luyen-tap-4-1596-0" title="hinh-anh-luyen-tap-4-1596-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div><p></p> <h3 id="2-dat-tiacutenh-roi-tiacutenh">2. Đặt tính rồi tính:</h3> <p>7 684 : 2&nbsp; ;&nbsp; 4 535 : 5&nbsp; ;&nbsp; 68 138 : 3&nbsp; ;&nbsp; 34 816 : 4</p> <h3 id="3-tiacutenh-nham-theo-mau">3. Tính nhẩm (theo mẫu):</h3> <p><strong>Mẫu:</strong></p> <p style="text-align: center;">12 00 : 4 = ?</p> <p style="text-align: center;">Nhẩm: 12 nghìn : 4 = 3 nghìn</p> <p style="text-align: center;">Vậy 12 000 : 4 = 3 000</p> <p>8 000 : 2&nbsp; ;&nbsp; 40 000 : 5</p> <p>36&nbsp; 000 : 9&nbsp; ;&nbsp; 42 000 : 7</p> <h3 id="4-dat-tiacutenh-roi-tiacutenh-theo-mau">4. Đặt tính rồi tính (theo mẫu):</h3> <p><strong>Mẫu:</strong></p> <p style="text-align: center;"><strong><img src="/uploads/tinymce/b30-h2-1665850843.jpg.webp" width="173" height="150" alt="hinh-anh-luyen-tap-4-1596-1" title="hinh-anh-luyen-tap-4-1596-1" loading="lazy"></strong></p> <p>93 663 : 3</p> <p>45 684 : 4</p> <p>21 357 : 7</p> <h3 id="5">5.</h3> <p>Một xưởng sản xuất nước mắm đã sản xuất được 1 230&nbsp;<em>l&nbsp;</em>nước mắm, người ta muốn đóng vào các can như nhau. Hãy tính và nêu số can nước mắm đóng được trong các trường hợp sau:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b30-h3-1665851042.jpg.webp" width="451" height="287" alt="hinh-anh-luyen-tap-4-1596-2" title="hinh-anh-luyen-tap-4-1596-2" loading="lazy"></p> <table style="border-collapse: collapse; width: 100.068%;" border="1"> <tbody> <tr> <td style="width: 33.4301%;">Số lít mỗi can</td> <td style="width: 23.1797%; text-align: center;">2&nbsp;<em>l</em></td> <td style="width: 22.8617%; text-align: center;">3&nbsp;<em>l</em></td> <td style="width: 20.5288%; text-align: center;">5&nbsp;<em>l</em></td> </tr> <tr> <td style="width: 33.4301%;">Số can</td> <td style="width: 23.1797%; text-align: center;">?</td> <td style="width: 22.8617%; text-align: center;">?</td> <td style="width: 20.5288%; text-align: center;">?</td> </tr> </tbody> </table> <h3 id="6nbsp">6.&nbsp;</h3> <h4>Đọc giá tiền mỗi mặt hàng sau rồi trả lời các câu hỏi:</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b30-h4-1665851170.jpg.webp" width="627" height="274" alt="hinh-anh-luyen-tap-4-1596-3" title="hinh-anh-luyen-tap-4-1596-3" loading="lazy"></p> <p>a) Mua 1 lốc sữa chua có 6 chai hết 25 800 đồng. Hỏi mỗi chai sữa chua có giá bao nhiêu tiền?</p> <p>b) Mua 1 hộp bánh su kem có 8 chiếc hết 42 400 đồng. Hỏi mỗi chiếc bánh su kem có giá bao nhiêu tiền?</p>