1. -3
2. -100
3. -30
Reason: Think of the words, drop, withdraw, descent. Those are clues that it’s a negative number. Example: Withdrawing money is TAKING away money from your account ,so represent that as a -
Depositing is PUTTING IN money in your account so it is positive.
More Examples: Falling is negative, Rising is positive. Gaining is positive, Losing is negative