Luyện tập 2
<h3 id="1-tiacutenh-nham">1. Tính nhẩm:</h3> <p>a) 9+2</p> <p>9+3</p> <p>5+7</p> <p>6+8</p> <p>5+9</p> <p>5+8</p> <p>b)&nbsp;</p> <p>9+6<br>6+9</p> <p>5+6<br>6+5</p> <p>8+7<br>7+8</p> <h3 id="2-so">2. Số?</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-01-154359-1664613846.png.webp" width="589" height="207" alt="hinh-anh-luyen-tap-2-1057-0" title="hinh-anh-luyen-tap-2-1057-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="3">3.</h3> <p>a) Chọn kết quả đúng với mỗi phép tính:</p> <p><br><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-01-154435-1664613881.png.webp" width="616" height="251" alt="hinh-anh-luyen-tap-2-1057-1" title="hinh-anh-luyen-tap-2-1057-1" loading="lazy"></p> <p>b) Tính:&nbsp;</p> <p>9+5+1</p> <p>5+3+4</p> <p>7+2+6</p> <p>8+4+5</p> <h3 id="4-chon-so-hang-trong-caacutec-so-datilde-cho-vagrave-tiacutenh-tong">4. Chọn số hạng trong các số đã cho và tính tổng:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-01-154556-1664613963.png.webp" width="564" height="159" alt="hinh-anh-luyen-tap-2-1057-2" title="hinh-anh-luyen-tap-2-1057-2" loading="lazy"></p> <h3 id="5">5.</h3> <p>Sau chuyến học tập trải nghiệm, tổ Một vẽ được 6 bức tranh, tổ Hai vẽ được 7 bức tranh. Hỏi hai tổ vẽ được tất cả bao nhiêu bức tranh?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-01-154731-1664614056.png.webp" width="577" height="311" alt="hinh-anh-luyen-tap-2-1057-3" title="hinh-anh-luyen-tap-2-1057-3" loading="lazy"></p> <p>Phép tính: <img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-01-145228-1664614077.png.webp" width="145" height="34" alt="hinh-anh-luyen-tap-2-1057-4" title="hinh-anh-luyen-tap-2-1057-4" loading="lazy"></p> <p>Trả lời: Hai tổ vẽ được tất cả <img src="/uploads/tinymce/anh-chup-man-hinh-2022-09-28-222122-1664614112.png.webp" width="31" height="32" alt="hinh-anh-luyen-tap-2-1057-5" title="hinh-anh-luyen-tap-2-1057-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div> bức tranh.<p></p> <p>&nbsp;</p>