Multiplying and Dividing Using Scientific Notation

When multiplying using scientific notation you multiply the coefficients,add the exponents,and keep the same base which should be 10 .

• False

• True

(9.4 x 10⁶)(3.2 x 10⁵)

• 30.08 x 10¹¹

• 3.8 x 10¹

• 3.008 x 10¹²

• 2.9375 x 10¹

Solve: (2 x 10⁹) (4 x 10^-4)

• 8 x 10¹³

• 8 x 10³⁶

• 8 x 10⁵

• 8 x 10^-36

Evaluate the expression. Give the answer in scientific notation.

Mathematical Equivalence

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What is the value of x in this equation?
(2.4×10³) × (3×10^x) = 7.2×10⁹

• 5

• 6

• 7

• 8

(8.4 * 10⁶)/(2.1 * 10³)

• 0.4 * 10⁴

• 400 * 10^-3

• 4 * 10³

• 4 * 10²

(2 x 10⁹)(4 x 10^-4)

• 8 x 10¹³

• 8 x 10³⁶

• 8 x 10⁵

• 8 x 10^-36

What is the simplified form of
(3.25 x 10³)(7.8 x 10⁶)

• 2.535 x 10¹⁰

• 2.535 x 10¹⁸

• 2.535 x 10¹⁹

• 2.535 x 10⁹

In the year 2000, the United States public debt was about 5.6 x 10¹² dollars. The population of the United States in that year was about 2.8 x 10⁸ people. What was the average debt per person?

• 2 x 10^-4

• 0.5 x 10^-4

• 5 x 10^-5

• 2 x 10⁴

• 12 x 10³

• 3 x 10⁹

• 1.2 x 10⁴

• 3 x 10³