Adding and Subtracting in Scientific Notation

What is the form of a number in scientific notation?

• a - 10^b

• a / 10^b

• a * 10^b

• a + 10^b

In scientific notation, what range must the coefficient 'a' fall between?

• 1 and 10

• 100 and 1000

• 0 and 1

• 10 and 100

What does a negative exponent indicate in scientific notation?

• Repeated division

• Addition

• Repeated multiplication

• Subtraction

When adding numbers in scientific notation, what must be true about the exponents?

• They must be zero

• They must be different

• One must be positive and one must be negative

• They must be the same

If you have 5.2 * 10^2 and 3.6 * 10^4, to what exponent should you convert both terms to add them?

• 10^2

• 10^3

• 10^5

• 10^4

What is the result of adding 5.2 * 10^2 and 360 * 10^2?

• 365.2 * 10^2

• 3652 * 10^1

• 3.652 * 10^4

• 36.52 * 10^3

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

• Subtract them

• Add them

• Multiply them

• Leave them unchanged

What is the correct scientific notation for 70.9 * 10^2?

• 7.09 * 10^3

• 0.709 * 10^4

• 70.9 * 10^3

• 7.09 * 10^2

What is the result of subtracting 2.1 * 10^2 from 73 * 10^2?

• 7.09 * 10^3

• 70.9 * 10^2

• 7.09 * 10^2

• 0.709 * 10^4

What should you do if your final answer in scientific notation is not between 1 and 10?

• Adjust the coefficient and exponent

• Leave it as is

• Multiply by 10

• Divide by 10