Question

you deposit $50 in your savings account.One week later, you withdraw $20.Write each amount as an integer

Answer 1

"Deposit" means that you added money to your current account. The amount of money in your account increased by the value you added.
Integer: +50

"Withdraw" means that you took money from your current account. The amount of money in your account decreased by the value you took.
Integer: -20