Adam and Bryan have 380 stickers.
After Adam gives Bryan 38 stickers,
Adam has 370 more stickers than Bryan.
- How many stickers does Adam have at first?
- How many stickers does Bryan have in the end?
|
Adam |
Bryan |
Before |
1 u + 408 |
1 u - 38 |
Change |
- 38 |
+ 38 |
After |
1 u + 370 |
1 u |
(a)
Total number of stickers
= 1 u + 1 u + 370
= 2 u + 370
2 u + 370 = 380
2 u = 380 - 370
2 u = 10
1 u = 10 ÷ 2 = 5
Number of stickers that Adam has at first
= 1 u + 408
= 5 + 408
= 413
(b)
Number of stickers that Bryan has in the end
= 1 u
= 5
Answer(s): (a) 413; (b) 5