31点4×0点125×0点8+0.1×上68点六怎样简便计算

31点4×0点125×0点8+0.1×上68点六怎样简便计算
2025-01-21 04:48:40
推荐回答(1个)
回答1:

31.4*0.125*0.8+0.1*68.6=31.4*0.1+0.1*68.6=(31.4+68.6)*0.1