1999+199.9+1.999+1.111
=1999+199.9+1.999+1+0.1+0.01+0.001
=1999+1+199.9+0.1+1.999+0.001+0.01
=2000+200+2+0.01
=2202.01
想一想,怎样计算简便?1999+199.9+1.999+1.111
想一想,怎样计算简便?1999+199.9+1.999+1.111
数学人气:360 ℃时间:2020-01-25 22:43:00
优质解答
我来回答
类似推荐