Luyện tập 3
<h3 id="1-chon-ket-qua-cho-duacuteng-voi-moi-pheacutep-tiacutenhnbsp">1. Chọn kết quả cho đúng với mỗi phép tính:&nbsp;</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-100541-1664679948.png.webp" width="512" height="338" alt="hinh-anh-luyen-tap-3-1118-0" title="hinh-anh-luyen-tap-3-1118-0" 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-tiacutenh-nham">2. Tính nhẩm:</h3> <p>15-5-2</p> <p>15-7</p> <p>16-6-2</p> <p>16-8</p> <p>18-8-1</p> <p>18-9</p> <h3 id="3-tiacutenh">3. Tính:</h3> <p>9+4</p> <p>13-4</p> <p>8+5</p> <p>13-5</p> <p>7+7</p> <p>14-7</p> <h3 id="4nbsp">4.&nbsp;</h3> <p>Mẹ mua cho về 15 quả trứng, chị Trang lấy 8 quả trứng để làm bánh. Hỏi mẹ còn lại bao nhiêu quả trứng?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-100756-1664680087.png.webp" width="462" height="252" alt="hinh-anh-luyen-tap-3-1118-1" title="hinh-anh-luyen-tap-3-1118-1" loading="lazy"></p> <p>Phép tính: <img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-094421-1664680104.png.webp" width="117" height="31" alt="hinh-anh-luyen-tap-3-1118-2" title="hinh-anh-luyen-tap-3-1118-2" loading="lazy"></p> <p>Trả lời:Mẹ còn lại&nbsp; <img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-094502-1664680131.png.webp" width="24" height="24" alt="hinh-anh-luyen-tap-3-1118-3" title="hinh-anh-luyen-tap-3-1118-3" loading="lazy"> quả trứng.</p> <h3 id="5-thao-luan-caacutech-tiacutenh-cua-hagrave-vagrave-ngoc-em-thiacutech-caacutech-nagraveo-hon">5. Thảo luận cách tính của Hà và Ngọc. Em thích cách nào hơn?</h3> <p style="text-align: center;">13-5=?</p> <p style="text-align: center;"><img src="/uploads/tinymce/anh-chup-man-hinh-2022-10-02-101009-1664680217.png.webp" width="471" height="215" alt="hinh-anh-luyen-tap-3-1118-4" title="hinh-anh-luyen-tap-3-1118-4" loading="lazy"></p> <p>&nbsp;</p>