Question

8. Tommy has 27 math problems to do for homework. He has completed 12 problems. Write an equation to find how many math problems Tommy has left to complete.
A. x - 12 = 27
B. x + 12 = 27
C. x + 27 = 12
D. 27 = 12 - x

Answer 1

so 27 is your total so that's always on the other side of the equal sign so you can automatically cross out C. Now A wouldn't make sense because you're not trying to figure out how many math problems you had before you did twelve, cause that's already given. B would make the most sense cause you have a certain number of problems left, adding the twelve you already had to get 27 the total number you have to do

Answer 2

thank you for explaining that to me.

Answer 3

np