Wendy and her brother have some marbles. Wendy had 57 more marbles than her brother. After Wendy gave her brother 15 marbles, her brother has 60 marbles now.
- How many marbles did her brother have at first?
- How many marbles does Wendy have now?
|
Wendy |
Her brother |
Before |
1 u + 57 |
1 u |
Change |
- 15 |
+ 15 |
After |
? |
60 |
(a)
Number of marbles that her brother had at first
= 60 -15
= 45
(b)
Number of marbles that Wendy had at first
= 1 u + 57
= 45 + 57
= 102
Number of marbles that Wendy has now
= 102 - 15
= 87
Answer(s): (a) 45; (b) 87