You saw a shirt for $97. You didn’t have the cash, so you borrowed$50 from mom and $50 from dad. 50 + 50 = 100 You bought the shirt and had$3 change.

You gave your mom $1 and your dad$1 and kept the other $1 for yourself. Now you owe your mom$49 and your dad $49. 49 + 49 = 98 + your 1 = 99 Where is the missing$1?