如题所述
第1个回答 2019-01-19
(0.56+0.8)÷8
=0.56÷8+0.8÷8
=0.07+0.1
=0.17
=0.56÷8+0.8÷8
=0.07+0.1
=0.17
第2个回答 2019-01-19
可以写,但运算的时候只能先算括号里面的,达不到简单运算的效果,括号里面可以写成8×2,这样560除以8然后在除以2.就可以啦!
第3个回答 2019-01-19
0.56=0.7×0.8,
后面的你自己算算,很简单的!!!!!!!!!!!!!!!!!!!!!!!?!!!!!!!!?!?????!???!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
后面的你自己算算,很简单的!!!!!!!!!!!!!!!!!!!!!!!?!!!!!!!!?!?????!???!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!