0.36×98+3.6×0.2怎么简便计算

来源:学生作业帮助网 编辑:作业帮 时间:2024/10/04 23:35:28
0.36×98+3.6×0.2怎么简便计算
x)336;V~O=f6yvPg؀9XVU8<]RB( bX 4C̀}g.7)؂)r

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