1. Debbie bought 4 dolls. Each doll cost $ 2. How many dollars did she spend on the dolls?   2. Diane has 9 dolls. Each doll has a blue dress, a yellow dress, and a red dress. How many dresses are there in all?   3. Michael has 11 toy cars. How many total wheels are there on the toy cars?   4. Michael arranges 7 blocks in a tall stack. He makes 7 such stacks. How many total blocks are there in the stacks?   5. Michelle multiplied 7 by 5 on her toy calculator. What product did the calculator display?