简便计算3.14乘2.05+3.14乘5.36+1.57乘5.18

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简便计算3.14乘2.05+3.14乘5.36+1.57乘5.18简便计算3.14乘2.05+3.14乘5.36+1.57乘5.18简便计算3.14乘2.05+3.14乘5.36+1.57乘5.183

简便计算3.14乘2.05+3.14乘5.36+1.57乘5.18
简便计算3.14乘2.05+3.14乘5.36+1.57乘5.18

简便计算3.14乘2.05+3.14乘5.36+1.57乘5.18
3.14乘2.05+3.14乘5.36+1.57乘5.18
=3.14乘2.05+3.14乘5.36+3.14乘2.59
=3.14*(2.05+5.36+2.59)
=3.14*10
=31.4

3.14乘2.05+3.14乘5.36+1.57乘5.18
=3.14乘2.05+3.14乘5.36+(3.14/2)乘5.18
=3.14*2.05+3.14*5.36+3.14*(5.18/2)
=3.14(2.05+5.36+2.59)
=3.14*10
=31.4