AlgebraEasyMoney left after a purchase
Algebra practice question
Tom had $35. After buying a book, he had $9 left. How much did the book cost, in dollars?
Answer: 26
35 − c = 9 gives c = 26.
Common wrong answers
- If you answered 9
- 9 is what was left.
- If you answered 44
- 44 adds 9 to 35.
- If you answered 3.89
- 3.89 divides 35 by 9.
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