Level 3
Adam has 140 stickers.
Adam has 10 less blue stickers than red ones.
Adam has 20 less yellow stickers than blue ones.
How many less yellow stickers than red and blue stickers does Adam have?
Level 3
Adam has 150 stickers.
Adam has 10 less blue stickers than red ones.
Adam has 20 less blue stickers than yellow ones.
How many yellow stickers does Adam have left if he gives away 15 of it?
