1.   Write 120,000,000 in scientific notation.
    A. 1.2×109 B. 12×107
    C. 1.2×108 D. 0.12×109
    Hint

  2.   The speed of light in a vacuum is exactly 299,792,458 meters per second. Write this number in scientific notation with the factor rounded to the hundredths place.
    A. 2.99 × 1010 B. 3.00 × 109
    C. 3.00 × 108 D. 2.99 × 109
    Hint

  3.   Write 1,360,000,000,000 in scientific notation.
    A. 13.6 × 1012 B. 1.36 × 1013
    C. 1.36 × 1012 D. 0.136 × 1013
    Hint

  4.   Which symbol makes the following statement true?
1.55 × 104 ______ 15,000
    A. = B.
    C. < D. >
    Hint

  5.   The Mojave Desert in southern California is 15,000 square miles. The Sahara Desert in northern Africa is about 233 times larger than the Mojave Desert. How big is the Sahara Desert?
    A. 3.5 × 106 sq mi B. 3.5 × 105 sq mi
    C. 3.5 × 103 sq mi D. 3.5 × 104 sq mi
    Hint



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