Operations with Scientific
Notation
Essentials questions: How do you add,
subtract, multiply, and divide using
scientific notation?
Unit 1-3
Operations with Scientific
Notation
• Quick review
– Product rule
– Quotient rule
– Power rule
Operations with Scientific
Notation
• Give an example of a number in scientific
notation.
• Give an example of a number in standard
notation.
Operations with Scientific
Notation
• Option 1
– Turn each scientific notation into standard
notation
– Add or subtract
– The turn your answer back into scientific notation
Operations with Scientific
Notation
• Another way to add or subtract numbers in
scientific notation is to change them to
standard notation, add or subtract and then
change back to scientific notation.
Operations with Scientific
Notation
• Option 2
– Write each with the same power of 10.
– Add or subtract
– Keep your answer in scientific notation
Operations with Scientific
Notation
• When adding or subtraction numbers written
in scientific notation you may have to find the
common power of 10.
• To find the common exponent you may need
to move the decimal point the required
number of places in each multiplier to change
the exponent.
• The number may no longer be in scientific
notation.
Operations with Scientific
Notation
• Multiply or divided the multipliers
• To multiply or divide remember to use the
product rule or the quotient rule.
• Make sure your answer is in scientific notation
Operations with Scientific
Notation
• Another way to multiply or divide numbers in
scientific notation is to change them to
standard notation, multiply or divide and then
change back to scientific notation.