# Mary sold half of her comic books and then bought 8 more. she now has 18. how many did she begin with?

##### 2 Answers

May 24, 2018

She had 20 books

#### Explanation:

If she bought 8 more and in total she have 18 before she buy those 8 books she had 10 so

May 24, 2018

20

#### Explanation:

Work backwards from the final count.

Final count

This was after adding eight more

This was after selling half the original amount

original amount