0.36×98+3.6×0.2怎么简便计算

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0.36×98+3.6×0.2怎么简便计算0.36×98+3.6×0.2怎么简便计算0.36×98+3.6×0.2怎么简便计算3.6X0.2=0.36X2很容易看出来原式可以写成0.36X(98+2)

0.36×98+3.6×0.2怎么简便计算
0.36×98+3.6×0.2怎么简便计算

0.36×98+3.6×0.2怎么简便计算
3.6X0.2=0.36X2 很容易看出来 原式可以写成0.36X(98+2)=0.36X100=36

0.36×98+3.6×0.2
= 3.6 × 9.8 + 3.6 × 0.2
= 3.6 × 10
= 36

3.6×9.8+3.6×2
=3.6×(9.8+2)
=3.6×10
=36