5.58+7.61+2.4+1.18怎么简算

问题描述:

5.58+7.61+2.4+1.18怎么简算

5.58+7.61+2.4+1.18
=5+7+2+1+(0.58+0.61+0.4+0.18)
=15+1.77
=16.77