Phép chia hết và phép chia có dư
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</div><p></p> <p style="text-align: center;"><strong>10 : 2 = 5&nbsp;</strong>là&nbsp;<strong>phép chia hết.</strong></p> <p style="text-align: center;"><img style="float: left;" src="/uploads/tinymce/b34-h2-1666505151.jpg.webp" width="86" height="98" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-1" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-1" loading="lazy"></p> <p>&nbsp;• 10 chia 2 được 5, viết 5.</p> <p>&nbsp;• 5 nhân 2 bằng 10, 10 trừ 10 bằng 0.</p> <p>&nbsp;</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h3-1666505326.jpg.webp" width="568" height="78" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-2" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-2" loading="lazy"></p> <p style="text-align: center;"><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h4-1666505361.jpg.webp" width="485" height="114" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-3" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-3" loading="lazy">Còn dư 1 viên bi</p> <p style="text-align: center;">Đây là <strong>phép chia có dư.</strong></p> <p style="text-align: center;"><img src="/uploads/tinymce/b34-h5-1666505498.jpg.webp" width="333" height="81" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-4" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-4" loading="lazy"></p> <p style="text-align: center;">Mười một chia hai được năm, dư một.</p> <p><img style="float: left;" src="/uploads/tinymce/b34-h-1666505548.jpg.webp" width="95" height="108" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-5" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div>&nbsp;<p></p> <p>&nbsp;• 11 chia 2 được 5, viết 5.</p> <p>&nbsp;• 5 nhân 2 bằng 10, 11 trừ 10 bằng 1.</p> <p>Chú ý:&nbsp;<strong>Số chia luôn khác 0.</strong></p> <p style="padding-left: 40px;"><strong>Số dư luôn bé hơn số chia.</strong></p> <h3 id="1-viet-pheacutep-chia-theo-nhoacutem-4-theo-mau">1. Viết phép chia theo nhóm 4 (theo mẫu).</h3> <p><span style="color: #3598db;">Mẫu:&nbsp;</span></p> <p style="text-align: center;"><span style="color: #3598db;"><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h6-1666505740.jpg.webp" width="217" height="105" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-6" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-6" loading="lazy">23 : 4 = 5 (dư 3)</span></p> <p style="text-align: center;"><img src="/uploads/tinymce/b34-h7-1666505782.jpg.webp" width="331" height="127" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-7" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-7" loading="lazy"></p> <h3 id="bagravei-tap-1-tiacutenh-theo-mau">Bài tập 1: Tính (theo mẫu).</h3> <p><span style="color: #3598db;">Mẫu: 15 : 3</span></p> <p style="text-align: center;"><span style="color: #3598db;"><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h8-1666505966.jpg.webp" width="80" height="93" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-8" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-8" loading="lazy">15 : 3 = 5</span></p> <p>a) 14:2&nbsp; ;&nbsp; 9:3&nbsp; ;&nbsp; 27:3</p> <p>b) 12:4&nbsp; ;&nbsp; 32:4&nbsp; ;&nbsp; 35:5</p> <h3 id="bagravei-tap-2-tiacutenh-theo-mau">Bài tập 2: Tính (theo mẫu).</h3> <p><span style="color: #3598db;">Mẫu: 17 : 3</span></p> <p style="text-align: center;"><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h9-1666506365.jpg.webp" width="95" height="113" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-9" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-9" loading="lazy"><span style="color: #3598db; text-align: start;">17 : 3</span><span style="color: #3598db; text-align: start;"> = 5 (dư 2)</span></p> <p>a) 15:2&nbsp; ;&nbsp; 10:3&nbsp; ;&nbsp; 23:3</p> <p>b) 9:4&nbsp; ;&nbsp; 32:5&nbsp; ;&nbsp; 18:5</p> <h3 id="bagravei-tap-3-so">Bài tập 3: Số ?</h3> <table style="border-collapse: collapse; width: 74.6868%; height: 89.5832px; margin-left: auto; margin-right: auto;" border="1"> <tbody> <tr style="height: 22.3958px;"> <td style="width: 35.0187%; height: 22.3958px; text-align: center;">Số cái bánh để xếp vào hộp</td> <td style="width: 25.6554%; height: 22.3958px; text-align: center;">Số bánh mỗi hộp</td> <td style="width: 16.8539%; height: 22.3958px; text-align: center;">Số hộp bánh</td> <td style="width: 22.6592%; height: 22.3958px; text-align: center;">Số bánh còn dư</td> </tr> <tr style="height: 22.3958px;"> <td style="width: 35.0187%; height: 22.3958px; text-align: center;">19</td> <td style="width: 25.6554%; height: 22.3958px; text-align: center;">2</td> <td style="width: 16.8539%; height: 22.3958px; text-align: center;">9</td> <td style="width: 22.6592%; height: 22.3958px; text-align: center;">1</td> </tr> <tr style="height: 22.3958px;"> <td style="width: 35.0187%; height: 22.3958px; text-align: center;">19</td> <td style="width: 25.6554%; height: 22.3958px; text-align: center;">5</td> <td style="width: 16.8539%; height: 22.3958px; text-align: center;">.?.</td> <td style="width: 22.6592%; height: 22.3958px; text-align: center;">.?.</td> </tr> <tr style="height: 22.3958px;"> <td style="width: 35.0187%; height: 22.3958px; text-align: center;">19</td> <td style="width: 25.6554%; height: 22.3958px; text-align: center;">4</td> <td style="width: 16.8539%; height: 22.3958px; text-align: center;">.?.</td> <td style="width: 22.6592%; height: 22.3958px; text-align: center;">.?.</td> </tr> </tbody> </table> <p><strong>Vui học</strong></p> <p>Cáo nhận nhiệm vụ chia đều 18 cái kẹo thành 3 phần.</p> <p>&nbsp;<img style="float: left;" src="/uploads/tinymce/b34-h10-1666506691.jpg.webp" width="69" height="84" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-10" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-10" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div>Cáo chia cho hai chú gấu mỗi chú 5 cái kẹo, phần kẹo còn lại là của cáo.<p></p> <p>&nbsp;Em có đồng ý với cách chia này không? Tại sao?</p> <p>&nbsp;</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h11-1666506878.jpg.webp" width="171" height="119" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-11" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-11" loading="lazy"></p> <p><strong>Thử thách</strong></p> <p>Các con bọ rùa màu vàng và màu đỏ có cách chọn khác nhau để đậu vào các lá cây. Tiếp theo, chiếc lá nào sẽ có cả bọ rùa màu vàng và bọ rùa màu đỏ cùng đậu?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b34-h12-1666507012.jpg.webp" width="512" height="110" alt="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-12" title="hinh-anh-phep-chia-het-va-phep-chia-co-du-1835-12" loading="lazy"></p>