Scientific Notation and Standard Form and Exponents

What is the main reason we sometimes write numbers in scientific notation?

• because it's a shorter way to write really long numbers

• it's the teacher's favorite way

• exponents are always easier than standard form numbers

• because elephants weigh a lot

Tags

CCSS.8.EE.A.3

The Earth is approximately 9.3 x 10⁷ miles from the sun. How far is that in standard form?

• 93,000,000

• 930,000,000

• 93.7

• 93 billion

Scientific Notation is made up of two number parts. The second part must be an exponent with of base 10.

• True

• False

Tags

CCSS.8.EE.A.3

What is (5 x 10⁴) + (6.1 x 10⁴) written in standard form?

• 11.1 x 10⁸

• 1.11 x 10⁴

• 11,000

• 111,000

Tags

CCSS.8.EE.A.4

Write 10^-4 in standard decimal form.

• 1000

• .001

• .0001

• 10,000

Tags

CCSS.8.EE.A.3

What is (4.3 x 10⁴) x (5 x 10³) written in scientific notation?

• 8.3 x 10⁷

• 21.5 x 10⁷

• 2.15 x 10⁶

• 2.15 x 10⁸

Tags

CCSS.8.EE.A.4

Divide:
(6.9 x 10⁷) / (2.3 x 10^-3)

• 3 x 10¹⁰

• 3 x 10⁴

• 3 x 10^-4

• 3 x 10^-11

Tags

CCSS.8.EE.A.4

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

Tags

CCSS.8.EE.A.4

What is 5³ written in standard form?

• 15

• 125

• 25

• 5 x 5 x 5

Tags

CCSS.6.EE.A.1

Write 8^-3 in standard form.

• 1/512

• 512

• 8 x 8 x 8

• -8 x -8 x -8

Tags

CCSS.8.EE.A.1