Powers, Roots & Standard Form

Powers, Roots & Standard Form Quiz

Edexcel IGCSE Maths: Quiz

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5 questions, one answer each

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  1. 1. What is the value of 505^0?

    • A. A. 0
    • B. B. 1
    • C. C. 5
    • D. D. Undefined

  2. 2. Which of these is the correct standard form of 47,20047{,}200?

    • A. A. 4.72×1034.72 \times 10^3
    • B. B. 47.2×10347.2 \times 10^3
    • C. C. 4.72×1044.72 \times 10^4
    • D. D. 4.72×1054.72 \times 10^5

  3. 3. Simplify 3835\frac{3^8}{3^5}.

    • A. A. 333^3
    • B. B. 3133^{13}
    • C. C. 131^3
    • D. D. 939^3

  4. 4. What is 2−42^{-4} as a fraction?

    • A. A. −8-8
    • B. B. −16-16
    • C. C. 116\frac{1}{16}
    • D. D. 18\frac{1}{8}

  5. 5. Calculate (2.5×103)+(4×102)(2.5 \times 10^3) + (4 \times 10^2), giving your answer in standard form.

    • A. A. 2.9×1032.9 \times 10^3
    • B. B. 6.5×1056.5 \times 10^5
    • C. C. 2.54×1032.54 \times 10^3
    • D. D. 29×10229 \times 10^2

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