1. Stacy bought 2 dolls for $ 2. She had $ 76 in her purse. How many dollars are left in her purse?   2. Diane has two dolls. The first doll is 72 cm tall and the second is 70 cm. What is the difference in their heights (in cm)?   3. Michael had 54 marbles in his school bag. He returned home with 52 marbles. How many marbles did he lose?   4. Michael arranges 12 blocks in a tall stack. Accidentally, he drops 5 blocks. How many blocks are still there in the stack?   5. Each day 83 vans are made in a toy factory. Of these, 9 are defective. How many toy vehicles are not defective?