8.8x1.25递等式计算能简便。

2024-11-06 23:39:34
推荐回答(2个)
回答1:

1.25*8*1.1=10*1.1=11

回答2:

(1)7/8÷3/4+7/8x2/3
=7/8x4/3+7/8x2/3
=7/8x(4/3+2/3)
=7/8x2
=7/4
(2)0.45×1/6÷0.45x1/6
=(0.45÷0.45)x(1/6x1/6)
=1x1/36
=1/36
(3)4.8÷5/13-4又4/5x1.6
=4.8x13/5-4.8x8/5
=4.8x(13/5-8/5)
=4.8x1
=4.8