Rose is an aspiring artist. She wants a paintbrush that costs $2.40, a set of paints that costs $9.20, and an easel that costs $6.50 so she can do some paintings. Rose already has $7.10. How much more money does Rose need?
The total cost of the paintbrush, the paints, and the easel was $2.40 + $9.20 + $6.50 = $<<2.4+9.2+6.5=18.10>>18.10.
Rose needs $18.10 - $7.10 = $<<18.10-7.10=11>>11 more.
#### 11