3.7×0.125+6.3÷8

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3.7×0.125+6.3÷8
3.7×0.125+6.3÷8

3.7×0.125+6.3÷8
一个数×0.125=这个数÷8
3.7×0.125+6.3÷8 =(3.7+6.3)×0.125=1.25

一个数×0.125=这个数÷8
3.7×0.125+6.3÷8 =(3.7+6.3)×0.125=1.25

0.125就是八分之一 乘0.125=除8 10/8=1.25

一个数×0.125=这个数÷8
3.7×0.125+6.3÷8 =(3.7+6.3)×0.125=1.25

3.7×0.125+6.3÷8
=3.7×1/8+6.3×1/8
=(3.7+6.3)×1/8
=10×1/8
=5/4

能简便
(1/8=0.125)
3.7*0.125+6.3/8
=3.7x1/8+6.3x1/8
=1/8(3.7+6.3)
=1/8x10
=5/4 =1.25

原式=3.7乘1/8+6.3除以8
=(3.7+6.3)乘(1/8乘8)
=1.25