Brenda was going to sell all of her stamp collection to buy a video game after selling half of them she changed her mind she then bought thirteen more how many did she start with if she had 33
Has 33 now. Before adding 13 stamps, she had (33-13) 30. This is half of her total, since she already sold half. To get the whole, multiply 30 by 2. 60 She started with 60
