Charlie and Adam have 20 stickers.
Charlie has 4 times as many stickers as Adam.
- How many stickers does Adam have?
- How many stickers does Charlie have?
- How many stickers does Charlie have more than Adam?
- How many stickers does Adam have less than Charlie?
(a)
Focus on the sentence with the word 'times'.
Assign 1 u to the variable that is found after the word 'times'.
Number of stickers that Adam has = 1 u
Number of stickers that Charlie has = 4 u
Total number of stickers they have = 4 u + 1 u = 5
5 u = 20
1 u = 20 ÷ 5 = 4
Number of stickers that Adam has
= 1 u
= 4
(b)
Number of stickers that Charlie has
= 4 u
= 4 x 4
= 16
(c)
Number of stickers that Charlie has more than Adam
= 4 u - 1 u
= 3 u
= 3 x 4
= 12
(d)
Number of stickers that Adam has less than Charlie
= 4 u - 1 u
= 3 u
= 3 x 4
= 12
Answer(s): (a) 4; (b) 16; (c) 12; (d) 12