Xuan has some pens. She has 2 less pens in Packet U than in Packet V. After 7 pens were transferred from Packet V to Packet U, there were 76 pens in Packet V.
- How many pens were there in Packet V at first?
- How many pens were there in Packet U in the end?
|
Packet U |
Packet V |
Before |
1 u |
1 u + 2 |
Change |
+ 7 |
- 7 |
After |
1 u + 7 |
76 |
(a)
Number of pens in Packet V at first
= 76 + 7
= 83
(b)
Number of pens in Packet U at first
= 83 - 2
= 81
Number of pens in Packet U in the end
= 81 + 7
= 88
Answer(s): (a) 83; (b) 88