SSAT Math Question 574: Answer and Explanation

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Question: 574

3. 2³ × 2³ × 2² =

A. 64
B. 2⁸
C. 2¹⁰
D. 2¹⁶

Correct Answer: B

Explanation:

Remember, with exponents, you can write it out! 2³ = 2 × 2 × 2 and 2² = 2 × 2, so you have (2 × 2 × 2) × (2 × 2 × 2) × (2 × 2). Count up the number of 2s that you have, which is 8, and make that number the new exponent: 2⁸. The correct choice is (B). Alternatively, you can use MADSPM: when multiplying the same base, add the exponents. Simply add 3 + 3 + 2 = 8. The answer will be 2⁸.

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