怎样简便运算

0.88*98+8.8*0.2
2025-01-05 00:31:58
推荐回答(4个)
回答1:

这道题可以用两种方法来解答。

0.88×98+8.8×0.2………变一变就简便,因为,0.88×98=8.8×9.8
= 8.8×9.8+8.8×0.2
=8.8×(9.8+0.2)
=8.8×10
=88

0.88×98+8.8×0.2………变一变就简便,因为,8.8×0.2=0.88×20
=0.88×98+0.88×20
=0.88×(98+20)
=0.88×100
=88

回答2:

0.88*98+8.8*0.2
=8.8*9.8+8.8*0.2
=8.8(9.8+0.2)
=8.8*10
=88

回答3:

回答4:

0.88*(98+2)