问3.8x2.7+38x0.73简便算法怎么算?
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问3.8x2.7+38x0.73简便算法怎么算?
请教算法
请教算法
3.8x2.7+38x0.73
=3.8x2.7+(3.8x10)x0.73
=3.8x2.7+3.8x(10x0.73)
=3.8x2.7+3.8x7.3
=3.8x(2.7+7.3)
=3.8x10
=38
=3.8x2.7+(3.8x10)x0.73
=3.8x2.7+3.8x(10x0.73)
=3.8x2.7+3.8x7.3
=3.8x(2.7+7.3)
=3.8x10
=38