Bảng nhân 9
<p>• Mỗi tấm thẻ có 9 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/b12-h1-1664183449.jpg.webp" width="700" height="337" alt="hinh-anh-bang-nhan-9-907-0" title="hinh-anh-bang-nhan-9-907-0" 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 9 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/b12-h2-1664183682.jpg.webp" width="319" height="253" alt="hinh-anh-bang-nhan-9-907-1" title="hinh-anh-bang-nhan-9-907-1" loading="lazy">9 x 4 = 36<br>9 x 5 = ?<br>9 x 6 = ?<br>9 x 7 = ?<br>9 x 8 = ?<br>9 x 9 = ?<br>9 x 10 = ?</p> <p style="text-align: center;"><strong>BẢNG NHÂN 9</strong></p> <p style="text-align: center;">9 x 1 = 9<br>9 x 2 = 18<br>9 x 3 = 27<br>9 x 4 = 36<br>9 x 5 = 45<br>9 x 6 = 54<br>9 x 7 = 63<br>9 x 8 = 72<br>9 x 9 = 81<br>9 x 10 = 90</p> <p style="text-align: center;"><img src="/uploads/tinymce/b12-h3-1664184510.jpg.webp" width="435" height="355" alt="hinh-anh-bang-nhan-9-907-2" title="hinh-anh-bang-nhan-9-907-2" loading="lazy"></p> <h3 id="1-tiacutenh-nham">1. Tính nhẩm:</h3> <p>9x2 ; 9x6 ; 9x3 ; 9x9 ; 9x8 ; 9x7&nbsp;</p> <p>9x5 ; 9x1 ; 9x4 ; 9x10 ; 8x9 ; 7x9&nbsp;</p> <h3 id="2-so">2. Số ?</h3> <table style="border-collapse: collapse; width: 80.1784%; height: 79px;" border="1"> <tbody> <tr> <td style="width: 52.4108%;">Số đã cho</td> <td style="width: 7.77608%; text-align: center;">2</td> <td style="width: 8.08712%; text-align: center;">9</td> <td style="width: 8.24264%; text-align: center;">8</td> <td style="width: 8.08712%; text-align: center;">7</td> <td style="width: 7.77608%; text-align: center;">5</td> <td style="width: 7.62056%; text-align: center;">6</td> </tr> <tr> <td style="width: 52.4108%;">Gấp 9 lần số đã cho</td> <td style="width: 7.77608%; text-align: center;">18</td> <td style="width: 8.08712%; text-align: center;">?</td> <td style="width: 8.24264%; text-align: center;">?</td> <td style="width: 8.08712%; text-align: center;">?</td> <td style="width: 7.77608%; text-align: center;">?</td> <td style="width: 7.62056%; 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/b12-h4-1664185632.jpg.webp" width="709" height="178" alt="hinh-anh-bang-nhan-9-907-3" title="hinh-anh-bang-nhan-9-907-3" loading="lazy"></p> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b12-h5-1664185642.jpg.webp" width="601" height="184" alt="hinh-anh-bang-nhan-9-907-4" title="hinh-anh-bang-nhan-9-907-4" loading="lazy"></p> <h3 id="4nbsp">4.&nbsp;</h3> <h4>Quay kim trên vòng tròn để chọn một số bất kì. Thực hiện phép nhân 9 với số đó rồi nêu kết quả.</h4> <p><img style="display: block; margin-left: auto; margin-right: auto;" src="/uploads/tinymce/b12-h6-1664186085.jpg.webp" alt="hinh-anh-bang-nhan-9-907-5" title="hinh-anh-bang-nhan-9-907-5" loading="lazy"></p><div> <div class="ads-horizontal-wrapped">
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</div><p></p> <h3 id="5">5.</h3> <p>a) Mỗi chiếc bánh ngọt được trang trí bởi 9 quả dâu tây. Hỏi để trang trí 10 chiếc bánh như thế cần bao nhiêu quả dâu tây?</p> <p>b) Kể một tình huống thực tế sử dụng phép nhân trong bảng nhân 9.</p>