Best Bathroom Scale

Third Grade math problem!?

My neighbor’s third grader came home with this word problem in math. Can anyone tell me how to solve it using only subtraction? I would have subtracted, divided, then added. However, her teacher says that it is a subtraction problem.

Jeff and David are both in the third grade. Jeff weighs 4 pounds more than David. The two boys stepped on the bathroom scales together. The scale showed 136 pounds as their total combined weight. How much did Jeff weigh by … Continue Reading