0.78÷0.01,2.08÷0.5,7.6*0.5+12.4÷2的简便计算

题目

0.78÷0.01,2.08÷0.5,7.6*0.5+12.4÷2的简便计算

答案

0.78÷0.01=78÷1=78
2.08÷0.5=2.08x2=4.16
7.6x0.5+12.4÷2
=7.6x0.5+12.4x0.5
=(7.6+12.4)x0.5
=20x0.5
=10