1. EASY

\(3 \times 1 = \)

 
2. EASY

\(9 \times 0 = \)

 
3. EASY

\(100 \times 10 = \)

 
4. MEDIUM

\(4 \times 4 = \)

 
5. MEDIUM

\(2 \times 8 = \)

 
6. MEDIUM

3 \(\times\) 27

 
7. MEDIUM

\(35 \div 5\)

 
8. HARD

\(7 \times 4 = \)

 
9. HARD

\(81 \div 9\)

 
10. HARD

\(78 \div 13\)