Adam buys some stickers for his friends.
If he gives each of them 5 stickers, he needs another 3.
If he gives each of them 8 stickers, he needs another 18.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 18 - 3
= 15
Small difference
= 8 - 5
= 3
Number of friends that Adam gives to
= 15 ÷ 3
= 5
(b)
Number of stickers that Adam buys
= 5 x 5 - 3
= 25 - 3
= 22
Answer(s): (a) 5; (b) 22