Help with first in math 24 game.?

-The object of the game is to get 24 using only 3 operatons and all 4 numbers. You can only use addition, subtraction, multiplication, and division. The solutions aren't that coplicated. For example if the numbers were 14, 14, 5 and 1 the solutions would be 14+14=28 5-1=4 28-4=24. Some however, are not as easy. I cant figure out these ones:



1. 17,13,11,10

2. 21, 14, 2, 2

3. 20, 16, 9, 7

4. 23, 22, 21, 20

5. 5, 3, 2, 2

6. 21, 10, 5, 3

7. 21, 14, 9, 3

8. 9, 5, 4, 3



If you can figure any of these out, please list the number and the solution. Thank youHere are all the solutions using only the allowed operations:



1) (13 - 11) * 17 - 10 = 2 * 17 - 10 = 34 - 10 = 24



2) (21 - 2) * 2 - 14 = 19 * 2 - 14 = 38 - 14 = 24



3) (9 - 7) * 20 - 16 = 2 * 20 - 16 = 40 - 16 = 24



4) (23 - 21) * 22 - 20 = 2 * 22 - 20 = 44 - 20 = 24



5) ((2 * 5) - 2) * 3 = (10 - 2) * 3 = 8 * 3 = 24



6) (5 + 10) * 3 - 21 = 15 * 3 - 21 = 45 - 21 = 24



7) (9 + 21) / 3 + 14 = 30 / 3 + 14 = 10 + 14 = 24



8) ((3 * 5) - 9) * 4 = (15 - 9) * 4 = 6 * 4 = 24