6.4×(7/4-1.25)×1/10的简便运算是什么?
3个回答
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原式
=6.4×(7/4-5/4)×1/10
=6.4×2/4×1/10
=6.4×1/2×0.1
=3.2×0.1
=0.32
=6.4×(7/4-5/4)×1/10
=6.4×2/4×1/10
=6.4×1/2×0.1
=3.2×0.1
=0.32
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6.4×(7/4-1.25)×1/10
=6.4x(7/4-5/4)x1/10
=6.4x2/4x1/10
=6.4x0.5x0.1=0.32
=6.4x(7/4-5/4)x1/10
=6.4x2/4x1/10
=6.4x0.5x0.1=0.32
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