Answer:
261 paperclips were used.
Explanation:
Given : A box holds 500 paperclips. After a week on the teacher's desk 239 paperclips remained.
To find : How many paperclips were used ?
Solution :
Total number of paperclips in the box = 500
After a week the remaining paperclips = 239
Number of used paperclips is given by
Used paperclips = Total number of paperclips - Reaming Paperclips
Used paperclips = 500 - 239
Used paperclips =261
Therefore, 261 paperclips were used.