Fill in the blanks.
Bryan has ten times as many stickers as Adam.
Bryan gave 9 to Adam.
In the end, Bryan has nine 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 |
10 x 10 = 100 u |
1 x 10 = 10 u |
11 x 10 = 110 u |
Change |
- 9 |
+ 9 |
|
After |
9 x 11 = 99 u |
1 x 11 = 11 u |
10 x 11 = 110 u |
(a)
Change X times into units.
There is an internal transfer of 9 stickers from Bryan to Adam.
The total remains unchanged.
LCM of 11 and 10 is 110.
Number of stickers that Bryan gives to Adam
= 100 u - 99 u
= 1 u
Difference in the number of stickers between Bryan and Adam at first
= 100 u - 10 u
= 90 u
(b)
Difference in the number of stickers between Bryan and Adam in the end
= 99 u - 11 u
= 88 u
(c)
Difference in the number of stickers that Bryan has at first and in the end
= 100 u - 99 u
= 1 u
(d)
Difference in the number of stickers that Adam has at first and in the end
= 11 u - 10 u
= 1 u
Answer(s): (a) 90; (b) 88; (c) 1; (d) 1