Perry and Caden had a total of 126 cards. Caden had half as many cards as Perry. How many cards must Perry give to Caden so they have an equal number of cards?
| |
Perry |
Caden |
Total |
| Before |
2 u |
1 u |
126 |
| Change |
- ? |
+ ? |
|
| After |
1 |
1 |
|
Total number of cards at first = 3 u
1 u = 126 ÷ 3 = 42
Perry and Caden have an equal number of cards in the end.
Number of cards that Caden has in the end
= 126 ÷ 2
= 63
Number of cards that Perry must give to Caden
= 63 - 42
= 21
Answer(s): 21
