4.05-2.8-0.7简算
问题描述:
4.05-2.8-0.7简算
答
4.05-2.8-0.7
=4+0.05-3.5
=0.5+0.05
=0.55
4.05-2.8-0.7简算
4.05-2.8-0.7
=4+0.05-3.5
=0.5+0.05
=0.55