Question

10.1×4.5-0.135+8.2×3怎么简便计算？

Answer 1

10.1×4.5-0.135+8.2×3没有简便计算方法。必须按运算规则，先乘除，后加减:

10.1*4.5-0.135+8.2*3
=45.45-0.135+24.6
=45.315+24.6
=69.915

Answer 2

10.1×4.5－0.135+8.2×3
=(10+0.1)×4.5－0.135+(9－0.8)×3
=45+0.45－0.135+27－2.4
=45+27+0.45－(0.135+2.4)
=72+0.45－2.535
=69+3.45－2.535
=69+0.915
=69.915

Answer 3

这道题要说简便计算就只能是前面一项，10.1×4.5。把它变成10×4.5+0.1×4.5。结果就是 45➕0.45=45.45。然后去减0.135。后面其他的都没有什么改变呐，8.2×3就直接乘出来就是了。

Answer 4

10.1×4.5-0.135+8.2×3=(10+0.1）×4.5-0.135+24.6=10×4.5+0.1×4.5-0.135+24.6=45+0.45-0.135+24.6=45+(0.45+24.6）-0.135=45+25.05-0.135=70.05-0.135=69.915

Answer 5

10.1×4.5-0.135+8.2×3＝10.1×4.5-0.03×4.5+8.2×3＝（10.1-0.03）×4.5+8.2×3＝10.07×4.5+8.2×3＝69.915，原题不能简便计算