1. Michelle made a necklace for her doll using 40 yellow beads and 11 white beads. How many beads does the necklace have?   2. Barbara has two dolls. The first doll costs $ 4 and the second costs $ 3. How many dollars do the two dolls cost?   3. Graham empties 16 marbles from a small box into a big box that already contains 16 marbles. How many marbles are now there in the big box?   4. Graham arranges 44 blocks in four stacks. He then arranges 13 blocks in six stacks. How many blocks did he arrange in the ten stacks?   5. Graham likes toy vehicles. He has 6 buses and 6 cabs. How many toy vehicles does he have?