Wendy has some buttons. She has 4 less buttons in Box J than in Box K. After 12 buttons were transferred from Box K to Box J, there were 66 buttons in Box K.
- How many buttons were there in Box K at first?
- How many buttons were there in Box J in the end?
|
Box J |
Box K |
Before |
1 u |
1 u + 4 |
Change |
+ 12 |
- 12 |
After |
1 u + 12 |
66 |
(a)
Number of buttons in Box K at first
= 66 + 12
= 78
(b)
Number of buttons in Box J at first
= 78 - 4
= 74
Number of buttons in Box J in the end
= 74 + 12
= 86
Answer(s): (a) 78; (b) 86