1. Diane bought 9 dolls. Each doll cost $ 5. How many dollars did she spend on the dolls?   2. Cheryl has 9 dolls. Each doll has a green dress, a red dress, and a yellow dress. How many dresses are there in all?   3. Jimmy has 10 toy cars. How many total wheels are there on the toy cars?   4. Jimmy arranges 10 blocks in a tall stack. He makes 6 such stacks. How many total blocks are there in the stacks?   5. Barbara multiplied 8 by 6 on her toy calculator. What product did the calculator display?