Michael gave
211 of his buttons to Ben,
19 of his remaining buttons to Luis and
38 of the rest of his buttons to Tim. He then had 30 buttons left. How many buttons had he at first?
| Ben |
Remaining buttons |
Total |
| 2 u |
9 u |
11 u |
| |
Luis |
Rest of the buttons |
|
| |
1 u |
8 u |
|
| |
|
Tim |
Left |
|
| |
|
3 u |
5 u |
|
| |
|
|
30 |
|
Number of buttons that Michael had before = 11 u
Number of buttons that Michael gave to Ben = 2 u
Number of buttons that Michael gave to Luis = 1 u
Number of buttons that Michael gave to Tim = 3 u
Number of buttons that Michael had left = 5 u
5 u = 30
1 u = 30 ÷ 5 = 6
Number of buttons that Michael had at first
= 11 u
= 11 u x 6
= 66
Answer(s): 66
