Fill in the blanks.
Bryan has six times as many stickers as Adam.
Bryan gave 18 to Adam.
In the end, Bryan has four times as many stickers as Adam.
- Difference in the number of stickers between Bryan and Adam at first = _____ u
- Difference in the number of stickers between Bryan and Adam in the end = _____ u
- Difference in the number of stickers Bryan has at first and in the end = _____ u
- Difference in the number of stickers Adam has at first and in the end = _____ u
|
Bryan |
Adam |
Total |
Before |
6 x 5 = 30 u |
1 x 5 = 5 u |
7 x 5 = 35 u |
Change |
- 18 |
+ 18 |
|
After |
4 x 7 = 28 u |
1 x 7 = 7 u |
5 x 7 = 35 u |
(a)
Change X times into units.
There is an internal transfer of 18 stickers from Bryan to Adam.
The total remains unchanged.
LCM of 7 and 5 is 35.
Number of stickers that Bryan gives to Adam
= 30 u - 28 u
= 2 u
Difference in the number of stickers between Bryan and Adam at first
= 30 u - 5 u
= 25 u
(b)
Difference in the number of stickers between Bryan and Adam in the end
= 28 u - 7 u
= 21 u
(c)
Difference in the number of stickers that Bryan has at first and in the end
= 30 u - 28 u
= 2 u
(d)
Difference in the number of stickers that Adam has at first and in the end
= 7 u - 5 u
= 2 u
Answer(s): (a) 25; (b) 21; (c) 2; (d) 2