概要:计算4.75-9.63+(8.25-1.37)原式=4.75+8.25-9.63-1.37=13-(9.63+1.37)=13-11=2
计算4.75-9.63+(8.25-1.37)
原式=4.75+8.25-9.63-1.37
=13-(9.63+1.37)
=13-11
=2