16Hit1600
Advanced MathMediumSimplifying a numeric expression with powers of 2

Advanced Math practice question

What is the value of (2¹⁰ − 2⁹)/2⁸?

Answer: 2

2¹⁰ − 2⁹ = 2⁹(2 − 1) = 2⁹, and 2⁹/2⁸ = 2.

Common wrong answers

If you answered 1
1 comes from 2⁹/2⁹, an exponent slip.
If you answered 4
4 is 2¹⁰/2⁸, ignoring the subtraction.
If you answered 512
512 is 2⁹, the numerator alone.

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