1.1 Scientific notation

1.1 Scientific notation Quiz

IB Maths: Analysis and Approaches HL: Quiz

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  1. 1. Which of these is written in scientific notation?

    • A. 0.7×1050.7\times10^{5}
    • B. 7×1047\times10^{4}
    • C. 70×10370\times10^{3}
    • D. 7E4

  2. 2. Simplify (5×103)(6×10−8)(5\times10^{3})(6\times10^{-8}).

    • A. 3×10−43\times10^{-4}
    • B. 3×10−53\times10^{-5}
    • C. 30×10−1130\times10^{-11}
    • D. 3×10113\times10^{11}

  3. 3. Find 2.4×1098×103\frac{2.4\times10^{9}}{8\times10^{3}} in scientific notation.

    • A. 3×1063\times10^{6}
    • B. 3×1053\times10^{5}
    • C. 0.3×1060.3\times10^{6}
    • D. 3×10123\times10^{12}

  4. 4. Find 6.1×108+9×1066.1\times10^{8} + 9\times10^{6}.

    • A. 1.51×1091.51\times10^{9}
    • B. 6.19×1086.19\times10^{8}
    • C. 15.1×101415.1\times10^{14}
    • D. 6.109×1086.109\times10^{8}

  5. 5. A light-year is 9.46×10159.46\times10^{15} m. How many metres is 2.0×1032.0\times10^{3} light-years, in scientific notation?

    • A. 1.892×10191.892\times10^{19}
    • B. 18.92×101818.92\times10^{18}
    • C. 1.892×10181.892\times10^{18}
    • D. 4.73×10124.73\times10^{12}

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