Fanny and Barbara had an equal number of marbles at first. After Fanny gave 12 marbles to Barbara, Barbara had 25 marbles. How many marbles does Fanny have in the end?
| |
Fanny |
Barbara |
| Before |
1 u |
1 u |
| Change |
- 12 |
+ 12 |
| After |
1 u - 12 |
25 |
Number of marbles that Barbara had at first
= 25 - 12
= 13
1 u = 13
Number of marbles that Fanny had at first = 13
Number of marbles that Fanny had in the end
= 1 u - 12
= 13 - 12
= 1
Answer(s): 1
