1.  Dianebought two dolls for $ 57 . She had $27 in her purse. How many dollars are left in her purse?   2. Stacy  has two dolls. The first doll is 63 cm tall and the second is 16 cm. What is the difference in their heights (in cm)?   3. Paulwent to play in the garden with 91 marbles. He returned home with 33 marbles. How many marbles did he lose?   4. Bill arranges 78  blocks in a tall stack. Accidentally, he drops49 blocks. How many blocks are still there in the stack?   5. Each day  632 trucks are made in a toy factory. Of these, 72 are defective. How many toy vehicles are not defective?