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Scores of simple math problems in the second volume of the fifth grade
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=

1 1/ 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)=