Lucy has some stickers. She has 20 less stickers in Bag A than in Bag B. After 29 stickers were transferred from Bag B to Bag A, there were 40 stickers in Bag B.
- How many stickers were there in Bag B at first?
- How many stickers were there in Bag A in the end?
|
Bag A |
Bag B |
Before |
1 u |
1 u + 20 |
Change |
+ 29 |
- 29 |
After |
1 u + 29 |
40 |
(a)
Number of stickers in Bag B at first
= 40 + 29
= 69
(b)
Number of stickers in Bag A at first
= 69 - 20
= 49
Number of stickers in Bag A in the end
= 49 + 29
= 78
Answer(s): (a) 69; (b) 78