脱式计算下面各题．21.5÷0.05×0.961.05÷0.7+18.9（28.92+21.9）÷6.60.75×18÷0.159.07-22.78÷3.4（10-6.24）÷0.8．

Question

脱式计算下面各题．

21.5÷0.05×0.96	1.05÷0.7+18.9	（28.92+21.9）÷6.6
0.75×18÷0.15	9.07-22.78÷3.4	（10-6.24）÷0.8．

Answer 1

（1）21.5÷0.05×0.96
=430×0.96
=412.8

（2）1.05÷0.7+18.9
=1.5+18.9
=20.4

（3）（28.92+21.9）÷6.6
=50.82÷6.6
=7.7

（4）0.75×18÷0.15
=0.75÷0.15×18
=5×18
=90

（5）9.07-22.78÷3.4
=9.07-6.7
=2.37

（6）（10-6.24）÷0.8
=3.76÷0.8
=4.7