1.   Which shows 0.0000516 entered into a calculator?
    A. B.
    C. D.
    Hint

  2.   Express 7.6109 × 108 in standard form.
    A. 76,109,000 B. 7,610,900,000
    C. 0.000000076109 D. 761,090,000
    Hint

  3.   Express 3.157 ×10-4 in standard form.
    A. 0.003157 B. 31,570
    C. 0.00003157 D. 0.0003157
    Hint

  4.   Express 0.0000000139 in scientific notation.
    A. 1.39 × 10-8 B. 1.39 × 10-7
    C. 1.39 × 10-9 D. 1.39 × 108
    Hint

  5.   On July 18, 2001, the United States national debt was $5,633,569,000. Write this number in scientific notation.
    A. 5.633569 × 109 B. 5.633569 × 1010
    C. 5.633569 × 108 D. 5.633569 × 10-9
    Hint



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