计算:2×(18.5-3.15)+6.6÷(0.75-0.2)=

问题描述:

计算:2×(18.5-3.15)+6.6÷(0.75-0.2)=

2×(18.5-3.15)+6.6÷(0.75-0.2)
=2×15.35+6.6÷0.55
=30.7+12
=42.7