0.78×56+7点8×4.4简便计算
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答案78,简便计算:0.78x56+7.8x4.4 =0.78x56+0.78x44 =0.78x(56+44) =0.78x100=78运用乘法分配律的逆运算
咨询记录 · 回答于2023-02-15
0.78×56+7点8×4.4简便计算
答案78,简便计算:0.78x56+7.8x4.4 =0.78x56+0.78x44 =0.78x(56+44) =0.78x100=78运用乘法分配律的逆运算
答案78,简便计算:0.78x56+7.8x4.4 =0.78x56+0.78x44 =0.78x(56+44) =0.78x100 =78运用乘法分配律的逆运算
乘法分配律的逆运算:axb+axc=ax(b+c)