Exponent Rules and Scientific Notation Review

When writing a number in scientific notation, the first number must be at least 1, but less than 10. (1 < x < 10)

• False

• True

According to exponent rules, when we multiply exponents with the same base we _______ the exponents.

• Multiply

• Add

• Divide

• Subtract

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

Which of the following is NOT equivalent to (2³)² ?

• 2⁵

• 2⁶

• 64

• 2³ x 2³

How would you write 564,000,000 in scientific notation?

• 5.64 x 10^-7

• 5.64 x 10⁶

• 5.64 x 10⁸

• 56.4 x 10⁷

(x⁷)³

• x²¹

• x¹⁰

• x⁴

• x³⁴³

Simplify to an equivalent expression BUT leave in exponent form.
                                   4³⋅4⁵

• 4⁸

• 16⁸

• 4¹⁵

• 16¹⁵

Fortnite has 78.3 million monthly users. Write the number in scientific notation

• 7.83 x 10⁶

• 78.3 x 10⁶

• 7.83 x 10⁷

• 78,300,000

Simplify the following and write the answer in scientific notation:

(2 x 10³) + (5 x 10⁵)

• 7 x 10²

• 10 x 10¹⁵

• 5.02 x 10⁵

• 1.0 x 10²