1. Stacy bought 9 dolls for $ 9. She had $ 76 in her purse. How many dollars are left in her purse?   2. Diane has two dolls. The first doll is 35 cm tall and the second is 29 cm. What is the difference in their heights (in cm)?   3. Bill had 58 marbles in his school bag. He returned home with 55 marbles. How many marbles did he lose?   4. Bill arranges 15 blocks in a tall stack. Accidentally, he drops 9 blocks. How many blocks are still there in the stack?   5. Each day 52 buses are made in a toy factory. Of these, 2 are defective. How many toy vehicles are not defective?