8.8除〔7.8+0.25乘(2.75+125%)〕

问题描述:

8.8除〔7.8+0.25乘(2.75+125%)〕

8.8÷(7.8+0.25×(2.75+125%))
=8.8÷(7.8+0.25×4)
=8.8÷(7.8+1)
=8.8÷8.8
=1