简便计算33点二除五加零点二乘66点八

2025-03-09 12:13:30
推荐回答(1个)
回答1:

33.2÷5+0.2×66.8
=33.2×1/5+1/5×66.8
=(33.2+66.8)×1/5
=100×1/5
=20