Question

Deirdre doubled her savings account balance of $100 . Then she withdrew $30 to buy some new clothes. Represent this situation with a numerical expression.

Answer 1

Your answer would be 100-30=70

Answer 2

(100*2)-30 
100 is multiplied by two to get 200 and then you subtract 30 to get 170 because they withdrew money so they took away money.