PARCC Exponent 2 — Questions and Answers
Question 1: What is the value of 3^4?
- 12
- 27
- 81 (Correct answer)
- 64
Correct answer: 81
3^4 = 3×3×3×3 = 81.
Question 2: Simplify: x^5 · x^3
- x^8 (Correct answer)
- x^15
- x^2
- x^53
Correct answer: x^8
When multiplying like bases, add the exponents: 5+3=8.
Question 3: What does any nonzero number raised to the power of 0 equal?
- 0
- 1 (Correct answer)
- the base
- undefined
Correct answer: 1
Any nonzero number to the zero power equals 1.
Question 4: Simplify: (2^3)^2
- 2^5
- 2^6 (Correct answer)
- 2^1
- 4^3
Correct answer: 2^6
Raising a power to a power multiplies the exponents: 3×2=6.
Question 5: What is 5^2 ÷ 5^2?
- 1 (Correct answer)
- 5
- 0
- 25
Correct answer: 1
Dividing equal powers gives 5^0 = 1.
Question 6: Express 2^(-3) as a fraction.
- -8
- 1/8 (Correct answer)
- -6
- 6
Correct answer: 1/8
A negative exponent means the reciprocal: 2^(-3) = 1/2^3 = 1/8.
Question 7: What is the value of 10^3?
- 30
- 100
- 1000 (Correct answer)
- 10000
Correct answer: 1000
10^3 = 10×10×10 = 1000.
