0.57乘六点2 5点7×0点三八用简便运算并且要过程?

2024-12-21 20:40:43
推荐回答(3个)
回答1:

0.57x6.2+5.7x0.38
=0.57x6.2+0.57x3.8
=0.57x(6.2+3.8)
=0.57x10
=5.7

回答2:

0.57×6.2+5.7×0.38
=0.57×6.2+0.57×10×0.38
=0.57×6.2+0.57×3.8
=0.57×(6.2+3.8)
=0.57×10
=5.7

回答3:

根据题意:0.57X6.2+5.7X0.38
=0.57x6.2+0.57X10X0.38
=0.57X6.2+0.57x3.8
=0.57X(6.2+3.8)
=0.57x10
=5.7