Question

if Sarah has 98 baseball cards in her collection for birthday her she's given 78 new cards and she sold 108 cards how many baseball cards does Sarah have left

Answer 1

68

1) Gathering the data

Sarah has 98 cards

She's given 78 then we can add

98 +78 = 176 cards

2) And right after that Sarah sold 108 cards, so now we can write

176 -108 = 68

3) Finally, Sarah now has 68 baseball cards left.