Bobby had some buttons at first. After he bought another 60 buttons, he had six times as many buttons as before. How many buttons did Bobby have at first?
| |
Buttons |
| Before |
1 u |
| Change |
+ 60 |
| After |
1 u + 60 = 6 u |
Number of buttons after he bought = 1 u + 60
Number of buttons that is six times as many buttons as before = 6 x 1 u = 6 u
6 u = 1 u + 60
6 u - 1 u = 60
5 u = 60
1 u = 60 ÷ 5 = 12
Number of stickers that Kim had at first
= 1 u
= 12
Answer(s): 12
