(12.5+0.125)x8-98的简便方法?

2024-11-25 11:07:48
推荐回答(2个)
回答1:

简便方法就是利用8×0.125=1,把8分别去乘以12.5和0.125,分别得到100和1。
(12.5+0.125)×8-98
=12.5×8+0.125×8-98
=100+1-98
=3

回答2:

(12.5+0.125)x8-98的简便方法?

(12.5+0.125)×8-98
=12.5×8+0.125×8-98
=100+1-98
=3