how to solve 4*4+4*4+4-4*4=20
Do all of the multiplications FIRST, then the + and -
16 + 16 +4 - 16 = 20
What do you find so difficult about this problem? Did you try to solve it? Start from the left:
16 + 16 + 4 - 16=20. +16 and -16 canecl out, so you have:
16 + 4=20
20=20. Was it that difficult?
haha,
