1. Diane bought 3 dolls. Each doll cost $ 3. How many dollars did she spend on the dolls?   2. Michelle has 3 dolls. Each doll has a yellow dress, a black dress, and a green dress. How many dresses are there in all?   3. Mark has 8 toy cars. How many total wheels are there on the toy cars?   4. Mark arranges 8 blocks in a tall stack. He makes 2 such stacks. How many total blocks are there in the stacks?   5. Cheryl multiplied 11 by 9 on her toy calculator. What product did the calculator display?