The puzzles above are all about Order of Operations:

50 + 50 – 25 x 0 + 2 + 2

50 + 50 – 0 + 2 + 2

104

48 divided by 2(9 + 3)

48 divided by 2 x 12

Now go from left to right

24 x 12

288

50 + 50 – 25 x 0 + 2 + 2

50 + 50 – 0 + 2 + 2

104

48 divided by 2(9 + 3)

48 divided by 2 x 12

Now go from left to right

24 x 12

288