Bảng trừ (có nhớ) trong phạm vi 20
<p>11-2</p> <p>11-3; 12-3</p> <p>11-4; 12-4; 13-4</p> <p>11-5; 12-5; 13-5; 14-5</p> <p>11-6; 12-6; 13-6; 14-6; 15-6</p> <p>11-7; 12-7; 13-7; 14-7; 15-7; 16-7</p> <p>11-8; 12-8; 13-8; 14-8; 15-8; 16-8; 17-8</p> <p>11-9; 12-9; 13-9; 14-9; 15-9; 16-9; 17-9; 18-9</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-095634-1664679403.png.webp" width="361" height="202" alt="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-0" title="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><br><br><p></p> <h3 id="1-tiacutenh-nham">1. Tính nhẩm:</h3> <p>14-5</p> <p>13-7</p> <p>15-6</p> <p>16-8</p> <p>11-4</p> <p>18-9</p> <p>11-3</p> <p>14-8</p> <h3 id="2-chon-ket-qua-duacuteng-voi-moi-pheacutep-tiacutenh">2. Chọn kết quả đúng với mỗi phép tính:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-095407-1664679455.png.webp" width="597" height="182" alt="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-1" title="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-1" loading="lazy"></p> <h3 id="3-xem-bang-tru-necircu-caacutec-pheacutep-tiacutenh-cograven-thieu">3. Xem Bảng trừ, nêu các phép tính còn thiếu:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-095839-1664679527.png.webp" width="539" height="357" alt="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-2" title="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-2" loading="lazy"></p> <h3 id="4">4.</h3> <p>Giàn gấc nhà bà Nga có tất cả 13 quả, trong đó có 7 quả đã chín. Hỏi giàn gấc nhà bà Nga còn mấy quả chưa chín?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-100010-1664679617.png.webp" width="341" height="206" alt="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-3" title="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-3" loading="lazy"></p> <p>Phép tính: <img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-094421-1664679644.png.webp" width="128" height="34" alt="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-4" title="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-4" loading="lazy"></p> <p>Trả lời: Giàn gấc nhà bà Nga còn <img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-094502-1664679673.png.webp" width="28" height="28" alt="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-5" title="hinh-anh-bang-tru-co-nho-trong-pham-vi-20-1117-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div> quả chưa chín.<p></p>