Adam buys some stickers for his friends.
If he gives each of them 3 stickers, he has 4 stickers left.
If he gives each of them 7 stickers, he needs another 28.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 4 + 28
= 32
Small difference
= 7 - 3
= 4
Number of friends that Adam gives to
= 32 ÷ 4
= 8
(b)
Number of stickers that Adam buys
= 8 x 3 + 4
= 24 + 4
= 28
Answer(s): (a) 8; (b) 28