Carl had 486 pens and Jen had 314 pens. After Carl gave Jen some pens, both of them have the same number of pens. How many pens did Carl give Jen?
|
Carl |
Jen |
Difference |
Before |
486 |
314 |
172 |
Change |
- ? |
+ ? |
|
After |
1 u |
1 u |
0 |
The total number of pens remains unchanged after Carl gave Jen some pens.
The number of pens that each had in the end is the same.
Number of more pens that Carl had than Jen
= 486 - 314
= 172
Number of pens that Carl gave Jen
= 172 ÷ 2
= 86
Answer(s): 86