There are 24 hours in a day. If John spends 1/3 of his day sleeping, how many hours does he spend awake?
A garden has 5 rows of flowers, with 18 flowers in each row. If 7 flowers die, how many flowers are left?
Anna has 4 boxes, and each box contains 6 toy cars. She gives 5 toy cars to her brother. How many toy cars does she have left?
