Phép cộng (không nhớ) trong phạm vi 1000
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</div><p></p> <p style="text-align: center;"><strong>Tính 234 + 325 = ?</strong></p> <p style="text-align: center;">Ta tính theo cột dọc như sau:</p> <p style="text-align: center;"><strong><img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-165905-1665309550.png.webp" width="615" height="160" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-1" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-1" loading="lazy"></strong></p> <p style="text-align: center;"><strong>Vậy 243 + 325 = 568</strong></p> <h3 id="1-tiacutenh">1. Tính:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-171208-1665310336.png.webp" width="537" height="96" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-2" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-2" loading="lazy"></p> <h3 id="2-dat-tiacutenh-roi-tiacutenh">2. Đặt tính rồi tính:</h3> <p>153 + 426</p> <p>582 + 207</p> <p>450 + 125</p> <p>666 + 300</p> <h3 id="3-tiacutenh-theo-mau">3. Tính (theo mẫu):</h3> <p>Mẫu:</p> <p><img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-171417-1665310471.png.webp" width="77" height="110" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-3" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-3" loading="lazy"></p> <p>4 cộng 5 bằng 9, viết 9</p> <p>2 cộng 3 bằng 5, viết 5</p> <p>Hạ 1, viết 1</p> <p>Vậy 124 + 35 = 159</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-171623-1665310590.png.webp" width="568" height="93" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-4" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-4" loading="lazy"></p> <h3 id="4-tiacutenh-theo-mau">4. Tính (theo mẫu):</h3> <p><strong>Mẫu:&nbsp;</strong></p> <p><img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-173605-1665311773.png.webp" width="80" height="101" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-5" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <p>1 cộng 4 bằng 5, viết 5&nbsp;</p> <p>Hạ 6, viết 6</p> <p>Hạ 2, viết 2</p> <p>Vậy 261 + 4 = 265</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-173734-1665311861.png.webp" width="577" height="99" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-6" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-6" loading="lazy"></p> <h3 id="5-dat-tiacutenh-roi-tiacutenh">5. Đặt tính rồi tính:</h3> <p>803+55</p> <p>246+31</p> <p>510+9</p> <p>694+4</p> <h3 id="6nbsp">6.&nbsp;</h3> <p>Lớp 2A và lớp 2B cùng sưu tầm các bức ảnh về động vật trong sách đỏ Việt Nam. Lớp 2A sưu tầm được 145 bức ảnh, lớp 2B sưu tấm được 154 bức ảnh. Hỏi hai lớp sưu tầm được tất cả bao nhiêu bức ảnh?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-09-174300-1665312189.png.webp" width="550" height="162" alt="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-7" title="hinh-anh-phep-cong-khong-nho-trong-pham-vi-1000-1481-7" loading="lazy"></p> <p style="text-align: center;">&nbsp;</p>