Exponents and Scientific Notation

What is the value of 5^3?

• 15

• 50

• 100

• 125

Simplify the expression 2^4 * 2^2.

• 2^5

• 2^3

• 2^6

• 2^8

Convert 0.000045 to scientific notation.

• 4.5 x 10^5

• 4.5 x 10^-4

• 4.5 x 10^4

• 4.5 x 10^-5

Evaluate 10^(-2).

• 0.01

• 100

• 1

• 0.1

Simplify the expression (3^2)^4.

• 81

• 144

• 1296

• 6561

Write 6.2 x 10^5 in standard form.

• 620000

• 6.2 x 10^4

• 6.2 x 10^6

• 6.2 x 10^5

What is the value of (-2)^3?

• -8

• 0

• 2

• -2

Simplify the expression (4^3)/(4^2).

• 64

• 16

• 4

• 1

Convert 2.5 x 10^6 to standard form.

• 2.5 x 10^6

• 2.5 million

• 2,500,0000

• 2,500,000

Evaluate 8^(-1).

• -8

• 0

• 64

• 1/8