Em Ôn Lại Những Gì Đã Học
<h3 id="1-tiacutenh">1. Tính:</h3> <p>&nbsp; 5 + 2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 8 - 3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 70 + 10</p> <p>15 + 2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 18 - 3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 80 - 10</p> <p>65 + 2&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 48 - 3&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 80 - 70</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1531-1664860555.png.webp" width="168" height="212" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-0" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-0" 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">2.</h3> <p>a) Đặt tính rồi tính:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1532-1664860590.png.webp" width="138" height="194" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-1" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-1" loading="lazy"></p> <p>&nbsp; &nbsp; &nbsp;66 + 13&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 54 + 33<br>&nbsp; &nbsp; &nbsp;73 -&nbsp; 31&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 86 -&nbsp; 20</p> <p>&nbsp; &nbsp; &nbsp;45 + 50&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 22 + 7<br>&nbsp; &nbsp; &nbsp;34 -&nbsp; 24&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 97 -&nbsp; 3</p> <p>b) Tính:</p> <p>&nbsp; &nbsp; &nbsp;50 + 10 - 30&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 27 + 10 + 2<br>&nbsp; &nbsp; &nbsp;60 - 20 + 40&nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; &nbsp; 48 - 5 - 20</p> <h3 id="3-higravenh-sau-coacute-bao-nhiecircu-higravenh-vuocircng-higravenh-trograven-higravenh-tam-giaacutec-higravenh-chu-nhat">3. Hình sau có bao nhiêu hình vuông? Hình tròn? Hình tam giác? Hình chữ nhật?</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1541-1664860713.png.webp" width="525" height="245" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-2" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-2" loading="lazy"></p> <h3 id="4">4.</h3> <p>a) Đồng hồ nào chỉ 3 giờ?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1542-1664860794.png.webp" width="359" height="152" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-3" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-3" loading="lazy"></p> <p>b) Quay các kim trên mặt đồng hồ để đồng hồ chỉ: 2 giờ; 11 giờ.</p> <p>c) Đọc tờ lịch dưới đây rồi trả lời các câu hỏi:</p> <p style="text-align: center;"><img src="/uploads/tinymce/1543-1664860840.png.webp" width="111" height="146" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-4" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-4" loading="lazy"></p> <p style="text-align: left;">- Ngày Sách Việt Nam 21 tháng Tư vào thứ mấy?</p> <p style="text-align: left;">- Hưởng ứng Ngày Sách Việt Nam, Trường Tiểu học Nguyễn Du tổ chức Tuần lễ văn hóa đọc. Nếu khai mạc vào ngày 21 tháng Tư thì kết thúc vào thứ mấy?</p> <h3 style="text-align: left;" id="5">5.</h3> <p>Thanh gỗ dài 85 cm, bác An cắt bớt 35 cm. Hỏi thanh gỗ còn lại dài bao nhiêu xăng-ti-mét?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1552-1664860938.png.webp" width="281" height="293" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-5" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div><p></p> <p><strong>Phép tính:</strong></p> <p><img src="/uploads/tinymce/1551-1664860968.png.webp" width="195" height="47" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-6" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-6" loading="lazy"></p> <p><strong>Trả lời:&nbsp;</strong>Thanh gỗ còn lại dài ... cm.</p> <h3 id="6-con-vat-nagraveo-cao-nhat">6. Con vật nào cao nhất?</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/1553-1664861005.png.webp" alt="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-7" title="hinh-anh-em-on-lai-nhung-gi-da-hoc-1223-7" loading="lazy"></p>