Operations With Scientific Notation

Which is the largest?
4.8 x 10^-6 
1.3 x 10²⁰
3.1 x 10^-4
9.2 x 10^-5 
9.5 x 10³²
5.9 x 10^-5
2.9 x 10²¹
8.4 x 10¹⁹

• 9.5 x 10³²

• 3.1 x 10^-4

• 8.4 x 10¹⁹

• 4.8 x 10^-6 

(3.8×10⁷)×162

• 6.156×10⁹

• 6.156×10⁸

• 615×10⁷

• 615×10⁸

Multiply using scientific notation.
(2 x 10³) x (1.9 x 10²)

• 3.8 x 10⁵

• 3.8 x 10²

• 3.8 x 10⁴

• 3.8 x 10⁶

Write 1.09 x 10^-4 in standard notation.

• 1,090

• 10,900

• 0.000109

• 0.0109

Multiply.

Write the answer in scientific notation.

(2 x 10⁹)(4 x 10⁴)

• 8 x 10⁵

• 6 x 10¹³

• 8 x 10¹³

• 8 x 10³⁶

Write the answer in scientific notation.

5 x 10¹²

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2 x 10⁶

• 2.5 x 10²

• 2.5 x 10⁶

• 3 x 10²

• 2.5 x 10¹⁸

How would you write 0.0005 in scientific notation?

• 50 x 10⁵

• 5 x 10^-4

• 5 x 10⁴

• .5 x 10³

The Statue of Liberty weighs 450,000 pounds. What is this number written in scientific notation?

• 4.5 x 10^-5

• 45 x 10^-4

• 45 x 10⁴

• 4.5 x 10⁵

The Earth is approximately 90,000,000 miles from the sun.  How long does it take light from the sun to reach the earth?  Use the speed of light to be approximately 2 x 10⁵ miles per second.

• 4.5 x 10² seconds

• 4.5 seconds

• 2.2 x 10² seconds

• 4.5 x 10¹ seconds

The Disney Online store sold 2 x 10⁴ Anna dolls last year.  They also sold 8 x 10⁴ Elsa dolls.  How many more Elsa dolls were sold than Anna dolls?

• 4.0 x 10⁰ more dolls

• 10 x 10⁴ more dolls

• 6.0 x 10⁴ more dolls

• 6.0 x 10⁰ more dolls