Will had
58 as many buttons as Zoe. After Will gave away 42 buttons, he had 81 less buttons than Zoe. How many buttons did Zoe have?
|
Will |
Zoe |
Before |
5 u |
8 u |
Change |
- 42 |
|
After |
5 u - 42 |
8 u |
Zoe had 81 more buttons than Will in the end. So, if Will had another 81 buttons, he would have the same number of buttons as Zoe.
8 u = 5 u - 42 + 81
8 u - 5 u = 81 - 42
3 u = 39
1 u = 39 ÷ 3 = 13
Number of buttons that Zoe had at first
= 8 u
= 8 x 13
= 104
Answer: 104