Number System

  
Fill in all the gaps, then press "Check" to check your answers. Use the "Hint" button to get a free letter if an answer is giving you trouble. You can also click on the "[?]" button to get a clue. Note that you will lose points if you ask for hints or clues!
1. 25 ÷ = -5.

2. ÷ (-4) = 9.

3. (-62) ÷ (-62) = .

4. (-32) ÷ 4 = .

5. (-50)÷ 50 = .

6. 30 ÷ 15 = .

7. -200 ÷ 10 = .

8. -48 ÷ 6 = .

9. (-12) * (-9) = .

10. 11 * (-1) = .

11. Which property is illustrated by the equation: (5*2)+(5*5) = 5*(2+5). .

12. -20 - (-5 * 2) = .