1. Sarah made a necklace for her doll using 28 red beads and 11 yellow beads. How many beads does the necklace have?   2. Michelle has two dolls. The first doll costs $ 6 and the second costs $ 6. How many dollars do the two dolls cost?   3. John empties 45 marbles from a small box into a big box that already contains 38 marbles. How many marbles are now there in the big box?   4. John arranges 29 blocks in four stacks. He then arranges 50 blocks in six stacks. How many blocks did he arrange in the ten stacks?   5. John likes toy vehicles. He has 6 cabs and 7 buses. How many toy vehicles does he have?