Gabby and her sister have some stamps. Gabby had 80 more stamps than her sister. After Gabby gave her sister 17 stamps, her sister has 66 stamps now.
- How many stamps did her sister have at first?
- How many stamps does Gabby have now?
|
Gabby |
Her sister |
Before |
1 u + 80 |
1 u |
Change |
- 17 |
+ 17 |
After |
? |
66 |
(a)
Number of stamps that her sister had at first
= 66 -17
= 49
(b)
Number of stamps that Gabby had at first
= 1 u + 80
= 49 + 80
= 129
Number of stamps that Gabby has now
= 129 - 17
= 112
Answer(s): (a) 49; (b) 112