Question

Susie needs 13 balloons. She already has 4 balloons. How many more balloons does she need?

Answer 1

13-4= 9 or 4+9= 13

Explanation:

She need 13 balloons she already have 4 so she need only nine to have 13 balloons.

Answer 2

13-4= 9 meaning she needs 9 more balloons to have 13z