Question

35×5/8+0.65-4×5/8怎么简便运算？

Answer 1

这道题可以利用提取公因数的方法来简便计算，具体过程如下：
35x5/8+0.65-4x5/8
=5/8x（35-4）+0.65
=5/8x31+0.65
=19.375+0.65
=20.025

Answer 2

35×5/8+0.65-4×5/8
=35×5/8-4×5/8+0.65
=5/8×(35-4)+0.65
=5/8×31+0.65
=19.375+0.65
=20.025

Answer 3

原式=35x5/8+5/8+0.025-4x5/8
=5/8x（35+1-4）+0.25
=5/8x32+0.025
=20.025

Answer 4

35×5/8+0.65-4×5/8
=35×5/8+5/8-4×5/8
=（35+1-4）×5/8
=32×5/8
=20

Answer 5

35×5/8+0.65-4×5/8
=5/8×(35-4)+13/20
=155/8+13/20
=775/40+26/40
=801/40
=20又40分之1