1. Sarah bought 9 dolls. Each doll cost $ 3 .How many dollars did she spend on the dolls?   2. A board game has 12 total coins. There are equal number of coins of 4 different colors. How many coins are there of each color?   3. Adamhas 10 toy cars. How many total wheels are there on the toy cars?   4. Bill arranges 18 blocks in two stacks. He then arranges 38 blocks in five stacks. How many blocks did he arrange in the seven stacks?   5. Last Friday 87 cabs were made in a toy factory. Of these, 2 were defective. How many toy vehicles were not defective?