Check Your Understanding A. Write each number in scientific notation. 1) 0.000006 2) 5400000 3) 60 4) 0.009 5) 48900 B. Write each number in standard notation. 11) 0.9 × 10−1 12) 2 × 105 13) 804 × 102 14) 2.66 × 104 15) 1.5 × 10−2 C. Solve the following problem. 16)Length of the shortest wavelength of visible light (violet ray) is 4.0 x10-7. Express this number in standard form. 17)The state of Colorado covers about 1.04 x 105 square miles. The Indian Ocean covers about 2.808 x 107 square miles. How many times bigger than Colorado is the Indian Ocean? 18)Dan has 1 bar of chocolate. His younger brother asked for the 2 of it. What part of the 23 chocolate was left for Dan?




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