Exploring Scientific Notation in 8th Grade Math

Why is scientific notation useful for scientists?

• It is used to measure temperature.

• It makes very large and very small numbers easier to work with.

• It helps in writing numbers in alphabetical order.

• It converts numbers into fractions.

What is the range of the factor in scientific notation?

• Between 0 and 1

• Between 1 and 10

• Between 10 and 100

• Between 100 and 1000

How do you convert the number 42,000,000 to scientific notation?

• 4.2 * 10^6

• 4.2 * 10^7

• 42 * 10^6

• 42 * 10^7

What is the first step in converting a number from scientific notation to standard notation?

• Add zeros to the left of the number.

• Move the decimal point to the right.

• Add zeros to the right of the number.

• Move the decimal point to the left.

How would you convert 1.32 * 10^-6 to standard notation?

• 0.00000132

• 0.000000132

• 0.0000000132

• 0.0000132

Convert 4.2 * 10^7 to standard notation.

• 420,000

• 420,000,000

• 4,200,000

• 42,000,000

What is the result of multiplying 2 * 10^3 by 3 * 10^2?

• 5 * 10^5

• 6 * 10^5

• 6 * 10^6

• 5 * 10^6

When multiplying numbers in scientific notation, what should you do with the exponents?

• Divide them

• Add them

• Subtract them

• Multiply them

What should you do if the factor in the result of a multiplication in scientific notation is greater than 10?

• Move the decimal point to the left and increase the exponent by 1

• Move the decimal point to the left and decrease the exponent by 1

• Move the decimal point to the right

• Leave it as it is

What is the scientific notation for the number 1,362,000,000?

• 13.62 * 10^9

• 13.62 * 10^8

• 1.362 * 10^9

• 1.362 * 10^8