Fill in the blanks.
Bryan has nine times as many stickers as Adam.
Bryan gave 140 to Adam.
In the end, Bryan has twice 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 |
9 x 3 = 27 u |
1 x 3 = 3 u |
10 x 3 = 30 u |
Change |
- 140 |
+ 140 |
|
After |
2 x 10 = 20 u |
1 x 10 = 10 u |
3 x 10 = 30 u |
(a)
Change X times into units.
There is an internal transfer of 140 stickers from Bryan to Adam.
The total remains unchanged.
LCM of 10 and 3 is 30.
Number of stickers that Bryan gives to Adam
= 27 u - 20 u
= 7 u
Difference in the number of stickers between Bryan and Adam at first
= 27 u - 3 u
= 24 u
(b)
Difference in the number of stickers between Bryan and Adam in the end
= 20 u - 10 u
= 10 u
(c)
Difference in the number of stickers that Bryan has at first and in the end
= 27 u - 20 u
= 7 u
(d)
Difference in the number of stickers that Adam has at first and in the end
= 10 u - 3 u
= 7 u
Answer(s): (a) 24; (b) 10; (c) 7; (d) 7