Adam buys some stickers for his friends.
If he gives each of them 16 stickers, he has 2 stickers left.
If he gives each of them 20 stickers, he needs another 10.
- How many friends are there?
- How many stickers does Adam buy?
(a)
Big difference
= 2 + 10
= 12
Small difference
= 20 - 16
= 4
Number of friends that Adam gives to
= 12 ÷ 4
= 3
(b)
Number of stickers that Adam buys
= 3 x 16 + 2
= 48 + 2
= 50
Answer(s): (a) 3; (b) 50