中學數學基礎練習—十字交乘法

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十字交乘法（五）

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分數乘法練習（四）

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中學數學基礎練習—整數乘法練習

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<div class="lexical__image center"><div class="lexical__imageWrapper"><img src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F81b8110c-639f-4669-95df-f7e4b5d89ada.png&amp;width=477&amp;sign=87zbjUWITG1Fbw4YJSlFb4ou9Av8-c19hCcNI-W192U" data-src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F81b8110c-639f-4669-95df-f7e4b5d89ada.png&amp;width=477&amp;sign=87zbjUWITG1Fbw4YJSlFb4ou9Av8-c19hCcNI-W192U" data-loaded="true" data-original-src="https://images.vocus.cc/81b8110c-639f-4669-95df-f7e4b5d89ada.png" data-lowquality="false" data-width="477" data-height="486" data-retry="0" onerror="Number(this.dataset.retry) > 4 ? this.src='/static/default-error-img.svg': (() => {this.src=this.dataset.originalSrc; this.dataset.retry = Number(this.dataset.retry)+1;})()" alt="raw-image"></div><div></div></div><p class="lexical__paragraph"><br></p><hr><h2 class="lexical__h2" dir="ltr"><span style="white-space: pre-wrap;">解答：</span></h2><div class="lexical__image center"><div class="lexical__imageWrapper"><img src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F7d6b77cc-1211-46f0-88f5-469fa785c8ee.png&amp;width=477&amp;sign=e5WX6TpzTPO5U6N-0Q6zTpvZv8bO4ouK1S2ni1L8ke4" data-src="https://resize-image.vocus.cc/resize?compression=6&amp;norotation=true&amp;url=https%3A%2F%2Fimages.vocus.cc%2F7d6b77cc-1211-46f0-88f5-469fa785c8ee.png&amp;width=477&amp;sign=e5WX6TpzTPO5U6N-0Q6zTpvZv8bO4ouK1S2ni1L8ke4" data-loaded="true" data-original-src="https://images.vocus.cc/7d6b77cc-1211-46f0-88f5-469fa785c8ee.png" data-lowquality="false" data-width="477" data-height="436" data-retry="0" onerror="Number(this.dataset.retry) > 4 ? this.src='/static/default-error-img.svg': (() => {this.src=this.dataset.originalSrc; this.dataset.retry = Number(this.dataset.retry)+1;})()" alt="raw-image"></div><div></div></div><p class="lexical__paragraph" dir="ltr"><br></p>