Adam buys some stickers for his friends.
If he gives each of them 4 stickers, he has 7 stickers left.
If he gives each of them 8 stickers, he needs another 25.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 7 + 25
= 32
Small difference
= 8 - 4
= 4
Number of friends that Adam gives to
= 32 ÷ 4
= 8
(b)
Number of stickers that Adam buys
= 8 x 4 + 7
= 32 + 7
= 39
Answer(s): (a) 8; (b) 39