1.25*888的简便运算

2024-12-04 10:59:12
推荐回答(3个)
回答1:

1.25*888
=1.25*(800+80+80
=1.25*800+1.25*80+1.25*8
=1000+100+10
=1110

回答2:

1.25*888
=1.25*8*111
=10*111
=1110

回答3:

1.25*888
=(1+1/4)*888
=1*888+1/4*888
=888+222
=1110