Question

小学五年级分数的简便计算，200~250题，快开学了，十万火急！！！可以是参考的

Answer 1

2/9+5/9=

2/7+5/7=

5/8+1/8=

5/6-1/6=

7/10-1/10=

7/9-2/9=

1/5+3/5=

11/12-9/12=

1-2/3=

4/7-/7=

7/8-3/8=

4/5+2/5=

17/20-3/20-9/20=

1/14+5/14+3/14=

1/2+3/10-1/5=

4/5-3/10+2/3=

1/2-(3/4-3/8)=

1/2+1/4-1/6=

5/6-(1/2+1/3)=

7/8-5/12+1/6=

2/3+(1/2-1/4)=

2/5+1/3+3/5=

1/4+1/3+1/4+2/3=

9/7+1/8+3/8+5/7=

4/3-(2/5+3/10)=

5/7+1/4-9/14=

3/4+3/6-5/8=

5/9+(3/4-1/2)=

1/10+3/8-2/5=

3/5-(2/15+1/3)=