Advanced MathEasyAdding like terms
Advanced Math practice question
A student adds 2a + 2a + 2a. Which expression is the sum?
- A. 6aCorrect
- B. 8a
- C. 2a³
- D. 6a³
Answer: A. 6a
Three lots of 2a make 6a.
Why the other answers are wrong
- B. 8a
- 8a is 2a multiplied by 4, not added three times.
- C. 2a³
- 2a³ would come from multiplying, not adding.
- D. 6a³
- The exponent stays 1 when adding like terms.
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