Level 2
Adam sells away 4 bags of stickers.
Each bag contains 6 stickers.
After that, he has 12 stickers left.
How many stickers does he have at first?
Level 3
Adam has 20 stickers.
The stickers are then shared with 3 friends and he needs 2 more so that
each friend receives the same number of stickers.
How many does each friend receive?