1.   Multiply 0.25 × 103.
    A. 250 B. 25,000
    C. 25 D. 0.00025
    Hint

  2.   Write 2,564,000 in scientific notation.
    A. 25.64×105 B. 2.564×106
    C. 2,564×103 D. 2.564×105
    Hint

  3.   Find the value of N in the equation.N × 104 = 8,653,300
    A. N = 86,533
    B. N = 86,533,000,000
    C. N = 865.33
    D. N = 8.6533
    Hint

  4.   Use your calculator to evaluate the expression.6.2319
    A. 1.245 × 1019 B. 12.45 × 1015
    C. 12.45 × 1019 D. 1.245 × 1015
    Hint

  5.   Use your calculator to evaluate the expression.
(5.9 × 108) × (2.4 × 109)
    A. 1.416 × 1018 B. 1.416 × 1016
    C. 1.416 × 1012 D. 1.416 × 1017
    Hint



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