Integer Rules Notes

Integers Review

Remember you have a cheat sheet in your notes!

• ​Multiply and Divide with negatives

  • ​one negative = negative answer

  • two negatives = positive answer

  • ​if lots of negatives count them, odd negatives are negative answer and even negatives are positive

Multiple Choice

(-6)x(-6) =

• -36

• 36

• 12

• -12

Multiple Choice

Alex thinks that if you multiply a negative and a positive that you will get a negative answer ALWAYS! His friend Tyler said he was wrong and the sign in your answer depends on how big and small the numbers are. Who is CORRECT? 

• Alex 

• Tyler

Multiple Choice

Liz said that multiplying 2 negative numbers will give you a positive answer.  Her friend Heather said that was the weirdest thing ever and that your answer is going to be negative. Who is right? 

• Liz

• Heather

Remember you have a cheat sheet in your notes!

• ​Add with negatives

  • ​Same Sign: Add the absolute values (no negatives) then keep the sign

  • ​Different Signs: Subtract the absolute value (biggest minus smallest) and keep the sign of the bigger number

Multiple Choice

-10 + 4

• -14

• 14

• -6

• 6

Multiple Choice

-20 + (-11)

• 31

• 9

• -9

• -31

Remember you have a cheat sheet in your notes!

• ​Subtract with negatives

  • ​Do not subtract with negatives, instead use KEEP CHANGE CHANGE

    • ​KEEP the first number

    • ​CHANGE subtraction to addition

    • ​CHANGE the sign of the second number (positives become negative and negatives become positive.

Multiple Choice

(-58) - (-5) =

• +63

• -53

• +53

• -63

Multiple Choice

(-51) - (+4) = 

• -49

• +55

• -55

• +49

​Hopefully you remember all your integer rules. If not ask for help and keep practicing!