1. EASY

31 \(+\) 7 \(=\)

 
2. EASY

10 \(+\) 12 \(=\)

 
3. EASY

72 \(+\) 3 \(=\)

 
4. MEDIUM

62 \(+\) 24 \(=\)

 
5. MEDIUM

47 \(+\) 12 \(=\)

 
6. MEDIUM

14 \(+\) 84 \(=\)

 
7. MEDIUM

36 \(+\) 44 \(=\)

 
8. HARD

99 \(+\) 22 \(=\)

 
9. HARD

14 \(+\) 87 \(=\)

 
10. HARD

47 \(+\) 39 \(=\)