PSLE At first, Xuan had 60 stamps and some buttons. After she gave away 29 stamps and 25% of the buttons, she had a total of 37 stamps and buttons. How many buttons did Xuan give away?
|
Stamps |
Buttons |
Total |
Before |
60 |
4 u |
|
Change |
- 29 |
- 1 u |
|
After |
31 |
3 u |
37 |
25% =
25100 =
14 Number of stamps that Xuan left
= 60 - 29
= 31
Number of buttons that Xuan left
= 37 - 31
= 6
3 u = 6
1 u = 6 ÷ 3 = 2
Number of buttons that Xuan gave away
= 1 u
= 1 x 2
= 2
Answer(s): 2