Unit 1 Review

Decimals, Fractions, Integers

Multiplying Decimals

Multiply the factors as if they were whole numbers. Disregard the decimal point (line up the numbers not the decimals) until you place it into the product.


The number of decimal places in the product must equal the total number of decimal places in all factors!

Missing a decimal place?

When the decimal is out of sight, then the decimal is to the right!
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Adding Integers

Same Sign: Add and Keep the sign

Different Sign: Subtract and keep the sign of the number with the larger absolute value

Subtracting Integers

KCO
  • KEEP the first integer
  • CHANGE the sign to Addition
  • Take the OPPOSITE of the second integer
  • USE ADDITION RULES
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STUDY!!!

Make sure you study for your test by reviewing notes, homework assignments, quizzes, old test reviews, and old tests!!


You're going to do GREAT! :)