Josie has $47 left on her banking account. She bought a birthday gift for her friend for $55 and a pair of glasses for $10. How much money does Josie need to deposit to get a zero balance?

Answer 1

47 - 55 = -8 (after purchasing gift)

-8 - 10 = -18 (after purchasing glasses)

She has a negative balance of 18, so needs to add 18 to make it 0, since -18 + 18 = 0