Fill in the blanks.
Adam has four times as many stickers as Bryan.
Both give away 10 stickers each.
In the end, Adam has six times as many stickers as Bryan.
- Difference in the number of stickers between Adam and Bryan = _____ u
- Number of stickers that Adam and Bryan have in the end = _____ u
- Number of stickers that Adam gives away = _____ u
- 1 u = _____
|
Adam |
Bryan |
Difference |
Before |
4 x 5 = 20 u |
1 x 5 = 5 u |
3 x 5 = 15 u |
Change |
- 10 |
- 10 |
|
After |
6 x 3 = 18 u |
1 x 3 = 3 u |
5 x 3 = 15 u |
(a)
Change X times into units.
The difference in the number of stickers that Adam and Bryan have at first and in the end is the same.
LCM of 3 and 5 is 15.
Difference in the number of stickers between Adam and Bryan
= 20 u - 5 u
= 15 u
(b)
Number of stickers that Adam and Bryan had in the end
= 18 u + 3 u
= 21 u
(c)
Number of stickers that Adam gives away
= 20 u - 18 u
= 2 u
(d)
2 u = 10
1 u = 10 ÷ 2 = 5
Answer(s): (a) 15 ; (b) 21; (c) 2 ; (d) 5