10.4-0.35*9.6
= (10+0.4)-(10-0.4)*0.35
=10+0.4-10*0.35+0.4*0.35
=(10-10*0.35)+(0.4+0.4*0.35)
=10*(1-0.35)+0.4*(1+0.35)
= 10*0.65+ 0.4+0.4*0.35
= 6.5+0.4+0. 14
= 6.9+0. 14
=7.04
10.4-9.6×0.35
=10.4-3.36
=7.04
我做不来简便,对不起哈!
10.4*9.6*0.35
=(10+0.4)(10-0.4)*0.35
=(100-0.16)*0.35
=35-0.056
=34.944
10.4-(10-0.4)*0.35=10.4-3.5+0.14=7.04
不可以用计算器啊