Fill in the blanks.
Bryan has seven times as many stickers as Adam.
Bryan gave 15 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 |
7 x 5 = 35 u |
1 x 5 = 5 u |
8 x 5 = 40 u |
Change |
- 15 |
+ 15 |
|
After |
4 x 8 = 32 u |
1 x 8 = 8 u |
5 x 8 = 40 u |
(a)
Change X times into units.
There is an internal transfer of 15 stickers from Bryan to Adam.
The total remains unchanged.
LCM of 8 and 5 is 40.
Number of stickers that Bryan gives to Adam
= 35 u - 32 u
= 3 u
Difference in the number of stickers between Bryan and Adam at first
= 35 u - 5 u
= 30 u
(b)
Difference in the number of stickers between Bryan and Adam in the end
= 32 u - 8 u
= 24 u
(c)
Difference in the number of stickers that Bryan has at first and in the end
= 35 u - 32 u
= 3 u
(d)
Difference in the number of stickers that Adam has at first and in the end
= 8 u - 5 u
= 3 u
Answer(s): (a) 30; (b) 24; (c) 3; (d) 3