Lily estimated a quotient of 120 and found an actual quotient of 83. what should she do next

She should check her actual quotient again, carefully. Something is

definitely wrong. The spread between her estimate and the actual

quotient is too much. She probably made a mistake with (at least)

one of them.

Since the estimate was just for her own convenience and the actual

quotient was the one that really counts, she should go straight to the

actual quotient and look there for a mistake first.