脱式计算过程方法如下
解:137+960÷80-20x3
=137+12-60
=149-60
=89
解:137+960÷80-20x3等于( 89 )
∵已知需求出137+960÷80-20x3等于多少
∴137 + 960 ÷ 80-20 x 3
= 137 + 960 × 1/80 - 60
= 137 + 960/80 - 60
= 137 + 12 - 60
= 149 - 60
= 89
答:137+960÷80-20x3等于89
137+960÷80-20x3
=137-60+96÷8
=77+12
=89