Mastering Scientific Notation

What is scientific notation?

• A technique for measuring temperature.

• A method for calculating averages.

• A way to express numbers as fractions.

• A method of writing numbers using powers of ten.

Why is scientific notation useful?

• It is only used for whole numbers.

• It makes numbers harder to read.

• It is primarily for artistic purposes.

• It simplifies the representation and calculation of very large or very small numbers.

Convert 4500 to scientific notation.

• 4.5 x 10^4

• 45 x 10^2

• 450 x 10^1

• 4.5 x 10^3

Convert 0.0045 to scientific notation.

• 4.5 x 10^3

• 4.5 x 10^-3

• 45 x 10^-5

• 0.45 x 10^-2

What is the scientific notation for 3.2 x 10^5?

• 3.2 x 10^5 = 320

• 3.2 x 10^5 = 3200000

• 3.2 x 10^5 = 3200

• 3.2 x 10^5 = 320000

Convert 7.89 x 10^3 to standard notation.

• 7900

• 7800

• 8000

• 7890

How do you round 0.000567 to two significant figures in scientific notation?

• 0.00057 x 10^-3

• 5.67 x 10^-4

• 5.6 x 10^-4

• 5.7 x 10^-4

What is the result of multiplying 2.5 x 10^4 by 3 x 10^2 in scientific notation?

• 5.0 x 10^6

• 7.5 x 10^6

• 7.5 x 10^4

• 1.5 x 10^5

Convert 1.2 x 10^-3 to standard notation.

• 1.2

• 0.0012

• 0.00012

• 0.012

What is the scientific notation for 0.00000089?

• 89 x 10^-9

• 0.89 x 10^-6

• 8.9 x 10^-7

• 8.9 x 10^7