Elyse had some stickers at first. She gave 18 of her stickers to her sister and 24 of her stickers to her neighbour. After that, her mother gave her another 6 stickers. She had 21 stickers in the end. How many stickers did Elyse have at first?
Fraction of stickers left after giving to her sister and her neighbour
= 1 -
18 -
24 = 1 -
18 -
48 = 1 -
58 =
38 Number of stickers left after giving to her sister and her neighbour = 3 u
Number of stickers left after her mother gave her another 6 stickers = 3 u + 6
3 u + 6 = 21
3 u = 21 - 6
3 u = 15
1 u = 15 ÷ 3 = 5
Number of stickers that Elyse had at first
= 8 u
= 8 x 5
= 40
Answer(s): 40
