Perform operations with numbers expressed in scientific notation including problems where both decimal and scientific notation are used. Use scientific notation and choose units of appropriate size for measurements of very large or very small quantities.

Sample Practice Questions (3)

The diameter of a human cell is approximately

0.00001

meters. Which of the following represents this measurement in scientific notation with the most appropriate unit?

1.0 \times 1 0^{- 5}

meters

1.0 \times 1 0^{5}

meters

1.0 \times 1 0^{- 6}

kilometers

1.0 \times 1 0^{- 4}

meters

Which value is

100

times larger than

5.0 \times 1 0^{6}

5.0 \times 1 0^{4}

5.0 \times 1 0^{7}

5.0 \times 1 0^{8}

500 \times 1 0^{8}

A rectangular field has a length of

2 \times 1 0^{3}

meters and a width of

4.5 \times 1 0^{2}

meters. What is the area of the field in square meters, expressed in scientific notation?

9 \times 1 0^{5}

9 \times 1 0^{6}

6.5 \times 1 0^{5}

9 \times 1 0^{1}

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