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9.36-4.6×0.3。怎么简便计算?
3个回答
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9.36-4.6×0.3
=9.36-4×0.3-0.6×0.3
=9.36-1.2-0.18
=8.26-0.18
=8.08
=9.36-4×0.3-0.6×0.3
=9.36-1.2-0.18
=8.26-0.18
=8.08
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解:运用乘法分配率将9.36化为0.3ⅹ31.2,然后提取0.3,再按四则运算法则进行计算。计算过程
9.36-4.6ⅹ0.3
=0.3ⅹ31.2-4.6ⅹ0.3
=0.3ⅹ(31.2-4.6)
=0.3ⅹ26.6
=7.98
9.36-4.6ⅹ0.3
=0.3ⅹ31.2-4.6ⅹ0.3
=0.3ⅹ(31.2-4.6)
=0.3ⅹ26.6
=7.98
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9.36一4.6x0.3
=9.36一4x0.3一0.6x0.3
=9.36一1.2一0.18
=8.14一0.2十0.02
=7.94十0.02
=7.96
=9.36一4x0.3一0.6x0.3
=9.36一1.2一0.18
=8.14一0.2十0.02
=7.94十0.02
=7.96
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