Fill in the blanks.
Bryan has nine times as many stickers as Adam.
Bryan gave 19 to Adam.
In the end, Bryan has seven 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 |
9 x 4 = 36 u |
1 x 4 = 4 u |
10 x 4 = 40 u |
Change |
- 19 |
+ 19 |
|
After |
7 x 5 = 35 u |
1 x 5 = 5 u |
8 x 5 = 40 u |
(a)
Change X times into units.
There is an internal transfer of 19 stickers from Bryan to Adam.
The total remains unchanged.
LCM of 10 and 8 is 40.
Number of stickers that Bryan gives to Adam
= 36 u - 35 u
= 1 u
Difference in the number of stickers between Bryan and Adam at first
= 36 u - 4 u
= 32 u
(b)
Difference in the number of stickers between Bryan and Adam in the end
= 35 u - 5 u
= 30 u
(c)
Difference in the number of stickers that Bryan has at first and in the end
= 36 u - 35 u
= 1 u
(d)
Difference in the number of stickers that Adam has at first and in the end
= 5 u - 4 u
= 1 u
Answer(s): (a) 32; (b) 30; (c) 1; (d) 1