Question

Terry was asked to evaluate  2^7 . He multiplied 2 times 7 and got the answer 14. Explain why Terry’s answer is incorrect. Then, evaluate  2^7.

Answer 1

Terry's answer is incorrect because he incorrectly multiplied 2 by 7 instead of raising 2 to the power of 7. Evaluating 2^7 involves multiplying 2 seven times instead of just once.

To evaluate 2^7 correctly, we have to multiply 2 by itself 7 times:
2^7 = 2 * 2 * 2 * 2 * 2 * 2 * 2 = 128