
8.94-3.6×1.4怎么巧算
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8.94-3.6×1.4把算式整理成:
8.94—7.2×0.7
=8.94—5.04
=3.9
8.94—7.2×0.7
=8.94—5.04
=3.9
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根据先乘除后加减运算规则得
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
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展开全部
根据先乘除后加减运算规则得
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
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8.94-3.6×1.4怎么巧算
计算过程如下:
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
计算过程如下:
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
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评论
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展开全部
8.94-3.6×1.4怎么巧算
计算过程如下:
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
计算过程如下:
8.94-3.6×1.4
=8.94-3.6×(1+0.4)
=8.94-(3.6×1+3.6×0.4)
=8.94-(3.6+1.44)
=8.94-5.04
=3.9
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