Bobby had 489 buttons and Kylie had 385 buttons. After Bobby gave Kylie some buttons, both of them have the same number of buttons. How many buttons did Bobby give Kylie?
|
Bobby |
Kylie |
Difference |
Before |
489 |
385 |
104 |
Change |
- ? |
+ ? |
|
After |
1 u |
1 u |
0 |
The total number of buttons remains unchanged after Bobby gave Kylie some buttons.
The number of buttons that each had in the end is the same.
Number of more buttons that Bobby had than Kylie
= 489 - 385
= 104
Number of buttons that Bobby gave Kylie
= 104 ÷ 2
= 52
Answer(s): 52