Nhân với số có một chữ số trong phạm vi 1 000 (tiếp theo)
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</div><p></p> <p style="text-align: center;"><strong>24 x 3 = .?.</strong></p> <p style="text-align: center;"><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b33-h2-1666502275.jpg.webp" width="101" height="246" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-1" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-1" loading="lazy"><strong>24 x 3 = 72</strong></p> <p style="text-align: center;"><img style="float: left;" src="/uploads/tinymce/b33-h3-1666502338.jpg.webp" width="64" height="99" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-2" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-2" loading="lazy"></p> <p>&nbsp;• 3 nhân 4 bằng 12, viết 2, <strong>nhớ 1</strong>.</p> <p>&nbsp;• 3 nhân 2 bằng 6, <strong>thêm 1&nbsp;</strong>bằng 7, viết 7.</p> <p style="text-align: center;">&nbsp;</p> <p style="text-align: center;"><strong>264 x 2 = .?.</strong></p> <p style="text-align: center;"><img src="/uploads/tinymce/b33-h4-1666502469.jpg.webp" width="199" height="192" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-3" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-3" loading="lazy"></p> <p style="text-align: center;"><strong>264 x 2 = 528</strong></p> <p><strong><img style="float: left;" src="/uploads/tinymce/b33-h5-1666502533.jpg.webp" width="73" height="108" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-4" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-4" loading="lazy"></strong></p> <p>&nbsp;• 2 nhân 4 bằng 8, viết 8.</p> <p>&nbsp;• 2 nhân 6 bằng 12, viết 2, <strong>nhớ 1</strong>.</p> <p>&nbsp;• 2 nhân 2 bằng 4, <strong>thêm 1&nbsp;</strong>bằng 5, viết 5.</p> <p>&nbsp;</p> <h3 id="1-dat-tiacutenh-roi-tiacutenh">1. Đặt tính rồi tính.</h3> <p>a) 43 x 4&nbsp; ;&nbsp; 14 x 5</p> <p>b) 241 x 4&nbsp; ;&nbsp; 101 x 5</p> <h3 id="bagravei-tap-1-so">Bài tập 1: Số ?</h3> <p>Mỗi rổ có 12 quả xoài.</p> <table style="border-collapse: collapse; width: 70.4593%; margin-left: auto; margin-right: auto;" border="1"> <tbody> <tr> <td style="width: 36.2683%; text-align: left;">Số rổ</td> <td style="width: 17.1908%; text-align: center;">1</td> <td style="width: 15.9329%; text-align: center;">2</td> <td style="width: 15.304%; text-align: center;">3</td> <td style="width: 15.304%; text-align: center;">4</td> </tr> <tr style="text-align: center;"> <td style="width: 36.2683%; text-align: left;">Số quả trong rổ</td> <td style="width: 17.1908%;">12</td> <td style="width: 15.9329%;">24</td> <td style="width: 15.304%;">.?.</td> <td style="width: 15.304%;">.?.</td> </tr> </tbody> </table> <h3 id="bagravei-tap-2-moi-so-lagrave-giaacute-tri-cua-bieu-thuc-nagraveo">Bài tập 2: Mỗi số là giá trị của biểu thức nào?</h3> <p>A. 120x2&nbsp; ;&nbsp; 360</p> <p>B. 125x2&nbsp; ;&nbsp; 240</p> <p>C. 60 x 2 x 3&nbsp; ;&nbsp; 250</p> <h3 id="bagravei-tap-3-tiacutenh-de-biet-moi-ban-se-lagravem-viec-gigrave">Bài tập 3: Tính để biết mỗi bạn sẽ làm việc gì.</h3> <p>Tú: 113 x 5 - 562</p> <p>Tân: 2 : (99 - 97)</p> <p>Sơn: 82 - 27 - 53</p> <p>Nam: 82 - 27 x 3</p> <p style="text-align: center;"><img src="/uploads/tinymce/b33-h6-1666503422.jpg.webp" width="210" height="167" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-5" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <p style="text-align: center;"><img src="/uploads/tinymce/b33-h7-1666503449.jpg.webp" width="178" height="177" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-6" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-6" loading="lazy"></p> <p style="text-align: center;"><img src="/uploads/tinymce/b33-h8-1666503473.jpg.webp" width="182" height="166" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-7" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-7" loading="lazy"></p> <p><strong>Thử thách</strong></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b33-h9-1666503573.jpg.webp" width="470" height="121" alt="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-8" title="hinh-anh-nhan-voi-so-co-mot-chu-so-trong-pham-vi-1-000-tiep-theo-1832-8" loading="lazy"></p> <p>Biểu thức nào dưới đây chỉ cách tính số bút chì trong 5 hộp trên?</p> <p>A. 12 x 5</p> <p>B. (12 - 3) x 5</p> <p>C. 12 x 5 - 3</p>