Eva has some erasers. She has 5 less erasers in Box M than in Box N. After 16 erasers were transferred from Box N to Box M, there were 58 erasers in Box N.
- How many erasers were there in Box N at first?
- How many erasers were there in Box M in the end?
|
Box M |
Box N |
Before |
1 u |
1 u + 5 |
Change |
+ 16 |
- 16 |
After |
1 u + 16 |
58 |
(a)
Number of erasers in Box N at first
= 58 + 16
= 74
(b)
Number of erasers in Box M at first
= 74 - 5
= 69
Number of erasers in Box M in the end
= 69 + 16
= 85
Answer(s): (a) 74; (b) 85