98-102/6.8用【简便计算】 43.27*7.9+2.1*43.27

98-102/6.8=83
43.27*7.9+2.1*43.27=43.27*(7.9+2.1)=432.7

1、98-102÷6.8
=98-15
=83

2、43.27×7.9+2.1×43.27
=43.27×（7.9+2.1）
=43.27×10
=432.7

98-102÷6.8
=98-15
=83
43.27×7.9+2.1×43.27
=43.27×(7.9+2.1)
=43.27×10
=432.7