Operations with Numbers in Scientific Notation

What do you do to your exponents when you are dividing in scientific notation?

• Subtract

• Divide

• Multiply

• Add

What do you do to your exponents when you are multiplying in scientific notation?

• Subtract

• Multiply

• Divide

• Add

Which of the following numbers is the least ?

• 7 x 10⁸

• 7.1 x 10⁸

• 7 x 10⁹

• 7.1 x 10⁹

Which number is the greatest?

• 5.25 x 10⁵
• 2.55 x 10⁵
• 5.55 x 10⁵
• 5 x 10⁵

Place the following numbers in order from least to greatest.

• 7.8 x 10⁶
  1.25 x 10⁵
  5.1 x 10⁴
  4.09 x 10⁴
• 4.09 x 10⁴
  5.1 x 10⁴
  1.25 x 10⁵
  7.8 x 10⁶
• 1.25 x 10⁵
  4.09 x 10⁴
  5.1 x 104
  7.8 x 10⁶

Which of these are NOT in scientific notation?

• 1.2 x 10³
• 5.3 x 10⁹
• 2.0 x 10⁰
• 10 x 10²

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

• Multiply them

• Add them

• Keep them the same

• Make them equal

What is scientific notation?

• A long way to write numbers containing a few digits
• A short way to write numbers containing many, many digits
• A number written without exponents
• None of the above

When multiplying numbers in scientific notation, what do you do to the leading numbers?
For example:
(4×10⁵)(3×10⁻²)

• Keep them the same
• Divide them
• Add them
• Multiply them

The rule of scientific notation is to write all exponents with a base of ____.

• 50
• 5
• 100
• 10