16.78-6.5+3.22-3.5
来源：学生作业帮助网 编辑：六六作业网 时间：2024/05/15 14:05:02
16.78-6.5+3.22-3.516.78-6.5+3.22-3.516.78-6.5+3.22-3.516.78-6.5+3.22-3.5=16.78+3.22-(6.5+3.5)=20-10=
16.78-6.5+3.22-3.5
16.78-6.5+3.22-3.5
16.78-6.5+3.22-3.5
16.78-6.5+3.22-3.5
=16.78+3.22-(6.5+3.5)
=20-10
=10