Chia số có hai chữ số cho số có một chữ số
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</div><p></p> <p style="text-align: center;"><strong>36 : 3 = .?.</strong></p> <p style="text-align: center;"><img src="/uploads/tinymce/b35-h2-1666508320.jpg.webp" width="158" height="184" alt="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-1" title="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-1" loading="lazy"></p> <p style="text-align: center;"><strong>36 : 3 = 12</strong></p> <p><img style="float: left;" src="/uploads/tinymce/b35-h3-1666508405.jpg.webp" width="86" height="176" alt="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-2" title="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-2" loading="lazy"></p> <p>&nbsp;• 3 chia 3 được 1, viết 1.<br>&nbsp;1 nhân 3 bằng 3;<br>&nbsp;3 trừ 3 bằng 0.</p> <p>&nbsp;• Hạ 6, 6 chia 3 được 2, viết 2.<br>&nbsp;2 nhân 3 bằng 6;<br>&nbsp;6 trừ 6 bằng 0.</p> <p>&nbsp;</p> <p>Chia đều 94 ngôi sao cho 4 bạn thì làm thế nào?</p> <p style="text-align: center;"><strong>94 : 4 = .?.</strong></p> <p style="text-align: center;"><img src="/uploads/tinymce/b35-h4-1666508950.jpg.webp" width="173" height="210" alt="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-3" title="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-3" loading="lazy"></p> <p style="text-align: center;"><strong>94 : 4 = 23 (dư 2)</strong></p> <p><img style="float: left;" src="/uploads/tinymce/b35-h5-1666509038.jpg.webp" width="96" height="189" alt="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-4" title="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-4" loading="lazy">&nbsp;• 9 chia 4 được 2, viết 2.<br>&nbsp;2 nhân 4 bằng 8;<br>&nbsp;9 trừ 8 bằng 1.</p> <p>&nbsp;• Hạ 4, được 14;<br>&nbsp;14 chia 4 được 3, viết 3.<br>&nbsp;3 nhân 4 bằng 12;<br>&nbsp;14 trừ 12 bằng 2.</p> <p>&nbsp;</p> <h3 id="1-dat-tiacutenh-roi-tiacutenh">1. Đặt tính rồi tính.</h3> <p>a) 48:4&nbsp; ;&nbsp; 55:5&nbsp; ;&nbsp; 42:2</p> <p>b) 47:3&nbsp; ;&nbsp; 71:4&nbsp; ;&nbsp; 92:5</p> <h3 id="bagravei-tap-1-tiacutenh-nham">Bài tập 1: Tính nhẩm.</h3> <p>a) 80:4&nbsp; ;&nbsp; 90:3</p> <p>b) 60x5&nbsp; ;&nbsp; 80x3</p> <p>c) 30x4&nbsp; ;&nbsp; 60:3</p> <h3 id="bagravei-tap-2-so">Bài tập 2: Số ?</h3> <p>a) 68 : 2 = .?.</p> <p>b) .?. : 3 = 17</p> <p>c) 56 : .?. = 4</p> <h3 id="bagravei-tap-3-so">Bài tập 3: Số ?</h3> <p>Mẹ xếp đều 28 quả bưởi da xanh vào 2 sọt, mỗi sọt có .?. quả.</p> <h3 id="bagravei-tap-4-dagravei-hon-ngan-hon-hay-dagravei-bang">Bài tập 4: Dài hơn, ngắn hơn hay dài bằng?</h3> <p>Bạn Khánh cắt một băng giấy thành 4 mảnh dài bằng nhau, mỗi mảnh dài 24 cm.</p> <p>Băng giấy lúc đầu .?. 1 m.</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b35-h6-1666509474.jpg.webp" width="395" height="116" alt="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-5" title="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <p><strong>Khám phá</strong></p> <p><strong>Các phép chia sau đúng là sai?</strong></p> <p style="text-align: center;">47 : 5 = 8 (dư 7)</p> <p style="text-align: center;">67 : 4 = 16 (dư 1)</p> <p style="text-align: center;"><img src="/uploads/tinymce/b35-h7-1666509551.jpg.webp" width="393" height="164" alt="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-6" title="hinh-anh-chia-so-co-hai-chu-so-cho-so-co-mot-chu-so-1840-6" loading="lazy"></p> <p><strong>Đất nước em</strong></p> <p>Bưởi da xanh là giống bưởi ngon của nước ta, xuất khẩu sang hơn 50 vùng khác nhau trên thế giới. Quả bưởi da xanh có dạng khối cầu, nặng khoảng từ 1 kg đến gần 3 kg. Em hãy tìm hiểu xem bưởi da xanh được trồng nhiều và nổi tiếng ở vùng nào của nước ta.</p>