8.85×9.8+0.885+0.885 = ? 简便计算

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8.85×9.8+0.885+0.885 = ? 简便计算
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8.85×9.8+0.885+0.885 = ? 简便计算
8.85×9.8+0.885+0.885 = ? 简便计算

8.85×9.8+0.885+0.885 = ? 简便计算
8.85×9.8+0.885+0.885
=0.885×98+0.885+0.885
=0.885×(98+1+1)
=0.885×100
=88.5

8.85×9.8+0.885+0.885 =8.85*(9.8+0.1+0.1)=88.5