Understanding Scientific Notation Quiz

What is the purpose of scientific notation?

• To make numbers look more complex

• To express very large or very small numbers in a compact form

• To convert numbers into fractions

• To add numbers more easily

In scientific notation, what does the 'a' represent in the form a x 10^b?

• The sign of the exponent

• A single digit followed by a decimal

• The number of decimal places

• The power of ten

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

• Count the moves of the decimal point

• Determine the sign of the exponent

• Move the decimal point

• Write in standard form

If you move the decimal point 3 places to the left, what is the exponent 'b'?

• -3

• 3

• -1

• 0

How is the number 5,320,000 expressed in scientific notation?

• 5.32 x 10^5

• 5.32 x 10^6

• 5.32 x 10^7

• 5.32 x 10^8

What is the result of multiplying (7.2 x 10^3) by (1.6 x 10^4)?

• 11.52 x 10^8

• 1.152 x 10^8

• 11.52 x 10^7

• 1.152 x 10^7

What is the result of dividing 2.7 x 10^8 by 3 x 10^5?

• 9 x 10^2

• 9 x 10^3

• 9 x 10^5

• 9 x 10^4

When adding numbers in scientific notation, what must be the same?

• The decimal places

• The signs

• The exponents

• The coefficients

How is 0.000072 expressed in scientific notation?

• 7.2 x 10^-7

• 7.2 x 10^-6

• 7.2 x 10^-5

• 7.2 x 10^-4

What is the result of adding 6.89 x 10^5 and 9.24 x 10^5?

• 9.929 x 10^6

• 1.613 x 10^6

• 9.929 x 10^5

• 16.13 x 10^5