Question

On Jason's homework sheet he completed 12 problems on Monday, 17 on Tuesday, and 21 on Wednesday. When his teacher checked his work, we got 5 problems wrong. How many problems in all did he get right?

Answer 1

12 + 17 + 21 = 50 problems total
5 wrong so subtract 5
50-5 = 45
So he got 45 questions right

Answer 2

First add all of the numbers together and take away 5 so 12+17+21= 50