Bảng nhân 8
<p>• Mỗi tấm thẻ có 8 chấm tròn. Lần lượt lấy ra 1, 2, 3 tấm thẻ rồi nêu các phép nhân tương ứng:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b11-h1-1664181018.jpg.webp" width="685" height="328" alt="hinh-anh-bang-nhan-8-906-0" title="hinh-anh-bang-nhan-8-906-0" loading="lazy"></p><div> <div class="ads-horizontal-wrapped" style="height: auto !important; min-height: 0px !important;">
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</div><p></p> <p>• Mỗi tấm thẻ có 8 chấm tròn. Lần lượt lấy ra 4, 5, 6, 7, 8, 9, 10 tấm thẻ rồi nêu các phép nhân tương ứng:</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b11-h2-1664181117.jpg.webp" width="372" height="262" alt="hinh-anh-bang-nhan-8-906-1" title="hinh-anh-bang-nhan-8-906-1" loading="lazy"></p> <p><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 4 = 32</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 5 = ?</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 6 = ?</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 7 = ?</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 8 = ?</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 9 = ?</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 10 = ?</span></p> <p style="text-align: center;"><strong>BẢNG NHÂN 8</strong></p> <p style="text-align: center;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 1 = 8<br style="box-sizing: inherit;">8 x 2 = 16<br style="box-sizing: inherit;">8 x 3 = 24<br style="box-sizing: inherit;">8 x 4 = 32</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 5 = 40</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 6 = 48</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 7 = 56</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 8 = 64</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 9 = 72</span><br style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;"><span style="box-sizing: inherit; color: #000000; font-family: Quicksand, Roboto, sans-serif; font-size: 16.8px; background-color: #ffffff;">8 x 10 = 80</span></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b11-h3-1664181412.jpg.webp" width="432" height="364" alt="hinh-anh-bang-nhan-8-906-2" title="hinh-anh-bang-nhan-8-906-2" loading="lazy"></p> <h3 id="1-tiacutenh-nham">1. Tính nhẩm:</h3> <p>8x3 ; 8x1 ; 8x7 ; 8x4 ; 8x2 ; 8x6</p> <p>8x5 ; 8x8 ; 8x9 ; 8x10 ; 2x8 ; 6x8</p> <h3 id="2-so">2. Số ?</h3> <table style="border-collapse: collapse; width: 78.9353%; height: 75px;" border="1"> <tbody> <tr> <td style="width: 55.425%;">Số đã cho</td> <td style="width: 7.49387%; text-align: center;">3</td> <td style="width: 7.49503%; text-align: center;">7</td> <td style="width: 7.2978%; text-align: center;">8</td> <td style="width: 7.2978%; text-align: center;">6</td> <td style="width: 7.2978%; text-align: center;">4</td> <td style="width: 7.2978%; text-align: center;">5</td> </tr> <tr> <td style="width: 55.425%;">Gấp 8 lần số đã cho</td> <td style="width: 7.49387%; text-align: center;">24</td> <td style="width: 7.49503%; text-align: center;">?</td> <td style="width: 7.2978%; text-align: center;">?</td> <td style="width: 7.2978%; text-align: center;">?</td> <td style="width: 7.2978%; text-align: center;">?</td> <td style="width: 7.2978%; text-align: center;">?</td> </tr> </tbody> </table> <h3 id="3-necircu-pheacutep-nhacircn-thiacutech-hop-voi-moi-tranh-ve">3. Nêu phép nhân thích hợp với mỗi tranh vẽ:</h3> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b11-h4-1664181960.jpg.webp" width="718" height="199" alt="hinh-anh-bang-nhan-8-906-3" title="hinh-anh-bang-nhan-8-906-3" loading="lazy"></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b11-h5-1664182020.jpg.webp" width="643" height="154" alt="hinh-anh-bang-nhan-8-906-4" title="hinh-anh-bang-nhan-8-906-4" loading="lazy"></p> <h3 id="4">4.</h3> <h4>Vẽ vào bảng con các nhóm chấm tròn thích hợp với phép nhân 8 x 2.</h4> <h3 id="5">5.</h3> <p>a) Để chuẩn bị cho Lễ kết nạp Đội viên của lớp 3A, các bạn đã sắp xếp 6 hàng ghế, mỗi hàng 8 ghế. Hỏi các bạn đã chuẩn bị tất cả bao nhiêu chiếc ghế?</p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b11-h6-1664182850.jpg.webp" width="636" height="423" alt="hinh-anh-bang-nhan-8-906-5" title="hinh-anh-bang-nhan-8-906-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <p>b) Kể một tình huống sử dụng phép nhân 8x7 trong thực tế.</p>