Operations with Scientific Notation

Which is the smallest?
1.3 x 10²⁰
2.9 x 10²¹
9.5 x 10³²
8.4 x 10¹⁹

• 1.3 x 10²⁰

• 2.9 x 10²¹

• 9.5 x 10³²

• 8.4 x 10¹⁹

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 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

Write 1.09 x 10^-4 in standard notation.

• 1,090

• 10,900

• 0.000109

• 0.0109

Write 0.54 x 10⁵ in scientific notation.

• 5.4 x 10⁶

• 5.4 x 10⁵

• 5.4 x 10⁴

• 54 x 10³

What is the simplified version of

• 3.9 x 10⁶

• 4 x 10²⁰

• 4 x 10⁶

• 3.9 x 10²⁰

How do you write
8.317 x 10⁶
in standard form?

• 8, 371, 000

• 83, 170, 000

• 837, 100

• 8, 317, 000

Write the answer in scientific notation.

4.1 x 10⁵ + 5.5 x 10⁶ =

• 5.91 x 10⁶

• 9.6 x 10⁵

• 9.6 x 10¹¹

• 4.65 x 10⁵

The mass of a substance is 8 X 10⁹ micrograms. If one microgram is equal to 1 X 10^-6 grams, what is its mass in grams?

• 1.25 X 10^-15 grams

• 1.25 X 10^-3 grams

• 8 X 10³ grams

• 8 X 10¹⁵ grams