Level 2
Adam buys a sticker, a marble and a bead for $7.50.
The sticker costs $3.50 more than the marble.
The bead costs 3 times as much as the marble.
How much is 4 marbles and 3 stickers?
Level 3
Peter made 76 paper aeroplanes in four days. Each day after the first day, he made 6 less paper aeroplanes than the day before. How many paper aeroplanes did he make on the first day?
Level 3
Peter made 76 paper aeroplanes in four days. Each day after the first day, he made 6 more paper aeroplanes than the day before. How many paper aeroplanes did he make on the first day?