简便计算6.4×0.4+6.4×(1-40%)

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简便计算6.4×0.4+6.4×(1-40%)简便计算6.4×0.4+6.4×(1-40%)简便计算6.4×0.4+6.4×(1-40%)6.4*0.4=2.56(1-40%)=60%6.4*60%=

简便计算6.4×0.4+6.4×(1-40%)
简便计算6.4×0.4+6.4×(1-40%)

简便计算6.4×0.4+6.4×(1-40%)
6.4*0.4=2.56
(1-40%)=60%
6.4*60%=3.84
2.56+3.84=6.4