Fill in the blanks in decimals.
2 boys, Adam and Bryan, share some stickers.
Bryan has 30% of the total.
If Bryan gives away some stickers,
his number of stickers decreases by 10%.
- Number of stickers that Bryan has at first = _____ u
- Change in the number of stickers that Bryan has = _____ u
- Number of stickers that Bryan has in the end = _____ u
- Number of stickers that Adam has in the end = _____ u
|
Adam |
Bryan |
Before |
7 u |
3 u |
Change |
|
- 0.3 u |
After |
7 u |
2.7 u |
(a)
Change percentage into units.
30% =
30100 =
310Fraction of the stickers that Bryan has at first =
310 Number of stickers that Bryan has at first = 3 u
(b)
Change in the number of stickers that Bryan has
= 10% x 3 u
=
10100 x 3 u
= 0.1 x 3 u
= 0.3 u
(c)
Number of stickers that Bryan has in the end
= 3 u - 0.3 u
= 2.7 u
(d)
Fraction of the number of stickers that Adam has at first
= 1 -
310 =
710 There is no change in the number of stickers that Adam has.
Number of stickers that Adam has in the end = 7 u
Answer(s): (a) 3; (b) 0.3; (c) 2.7; (d) 7