Understanding Standard Form

What is the standard form of the number 4500?

• 4.5 x 10^3

• 4.5 x 10^-3

• 45 x 10^2

• 4.5 x 10^2

Convert the number 0.00056 into standard form.

• 56 x 10^-6

• 5.6 x 10^-4

• 5.6 x 10^4

• 5.6 x 10^-3

Which of the following is in standard form? (Can choose more than one answer)

• 3.2 x 10^-7

• 32 x 10^5

• 3200

• 3.2 x 10^4

How do you express the number 0.0045 in standard form?

• 4.5 x 10^3

• 4.5 x 10^-3

• 45 x 10^-4

• 0.45 x 10^-2

What is the standard form of 123000?

• 1.23 x 10^5

• 12.3 x 10^6

• 1.23 x 10^3

• 123 x 10^3

If a number is written as 7.89 x 10^3, what is its ordinary number?

• 7890

• 7800

• 789

• 7980

Convert 5.67 x 10^-2 into an ordinary number.

• 0.567

• 0.00567

• 0.0567

• 5.67

What is the standard form of the number 0.00000789?

• 78.9 x 10^-7

• 7.89 x 10^-6

• 0.789 x 10^-5

• 7.89 x 10^6

Which of the following is NOT in standard form?

A. 1.2 x 10^5

B. 0.5 x 10^3

C. 3.4 x 10^2

• A

• B

• C

• None

• All

How do you write the number 1500000 in standard form?

• 150 x 10^4

• 15 x 10^5

• 1.5 x 10^6

• 1.5 x 10^5