Adam buys some stickers for his friends.
If he gives each of them 3 stickers, he has 3 stickers left.
If he gives each of them 6 stickers, he needs another 21.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 3 + 21
= 24
Small difference
= 6 - 3
= 3
Number of friends that Adam gives to
= 24 ÷ 3
= 8
(b)
Number of stickers that Adam buys
= 8 x 3 + 3
= 24 + 3
= 27
Answer(s): (a) 8; (b) 27