1. Stacy bought 3 dolls. Each doll cost $ 5. How many dollars did she spend on the dolls?   2. Cheryl has 3 dolls. Each doll has a yellow dress, a blue dress, and a red dress. How many dresses are there in all?   3. Andy has 11 toy cars. How many total wheels are there on the toy cars?   4. Andy arranges 7 blocks in a tall stack. He makes 8 such stacks. How many total blocks are there in the stacks?   5. Debbie multiplied 10 by 7 on her toy calculator. What product did the calculator display?