Cathy and Lucy had an equal number of erasers at first. After Cathy gave 8 erasers to Lucy, Lucy had 28 erasers. How many erasers does Cathy have in the end?
| |
Cathy |
Lucy |
| Before |
1 u |
1 u |
| Change |
- 8 |
+ 8 |
| After |
1 u - 8 |
28 |
Number of erasers that Lucy had at first
= 28 - 8
= 20
1 u = 20
Number of erasers that Cathy had at first = 20
Number of erasers that Cathy had in the end
= 1 u - 8
= 20 - 8
= 12
Answer(s): 12
