Level 2
Jake bought a burger for 45¢ and a stick of hotdog for 30¢. He gave the cashier $1. How much change did he receive?
(Give your answer in cents.)
Level 2
Beaker A had 3 ℓ of water at first. Andy poured some water from beaker B to A until beaker A is filled with 5 ℓ of water. There were 4 ℓ of water left in beaker B. How many litres of water were there in beaker B at first?
Level 3
Carol had 18 stickers at first. After Betty gave her some stickers, Carol had 126 stickers. If Betty had 159 stickers left, how many stickers did Betty have at first?