Question

Mrs. Sullivan had 18 erasers at the end of the day. She remembered giving out 14 and getting back 11, then giving out 13 and getting back 14. How many erasers did she start with?

Answer 1

She had 27 erasers at the beginning of the day.

Answer 2

Mrs. Sullivan would've had 45. It is because you would add 18 + 14 + 13 = 45. So, Mrs. Sullivan had 45 erases at the beginning.