AlgebraEasyPrice of one item from a pair's total
Algebra practice question
A pen and a pencil together cost $3. The pen costs $2. What is the cost, in dollars, of the pencil?
Answer: 1
2 + p = 3, so p = 1.
Common wrong answers
- If you answered 2
- 2 is the pen.
- If you answered 5
- 5 adds the two amounts.
- If you answered 6
- 6 multiplies them.
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