Google "Four Fours" and you will find a number of solutions, presented more comprehensively than we can.
7 and 9 is 16. 16x2 is 32. 32-8 is 24.
9
Yes we can make it.
75 - 32
You can't unless something is missing in your question.
Using only sums and differences, and not necessarily all four numbers, 1, 3, 9 and 27 will make all numbers from 0 to 40.
Google "Four Fours" and you will find a number of solutions, presented more comprehensively than we can.
7 and 9 is 16. 16x2 is 32. 32-8 is 24.
[(-2) + (-1)]/(-3) * [(-7) - (-5)]
Yes
9
1
Yes we can make it.
75 - 32
if your using whole numbers, u can only use 3
101