1. Michelle made a necklace for her doll using 16 green beads and 5 red beads. How many beads does the necklace have?   2. Sarah has two dolls. The first doll costs $ 6 and the second costs $ 4. How many dollars do the two dolls cost?   3. Andy empties 26 marbles from a small box into a big box that already contains 11 marbles. How many marbles are now there in the big box?   4. Andy arranges 41 blocks in four stacks. He then arranges 31 blocks in six stacks. How many blocks did he arrange in the ten stacks?   5. Andy likes toy vehicles. He has 5 buses and 25 cars. How many toy vehicles does he have?