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Rules for Integers
add, subtract, mult, divide integers
29
Mathematics
8th Grade
10/19/2012
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Cards

Term
positive + positive
 Definition
add and keep the postive
Term
positive + negative
 Definition
subtract, keep the sign of bigger number
Term
negative + negative
 Definition
add and keep the negative
Term
negative + postive
 Definition
subtract, keep the sign of bigger number
Term
positive x positive
 Definition
=positive
Term
negative x negative
 Definition
=positive
Term
positive x negative
 Definition
=negative
Term
negative x positive
 Definition
=negative
Term
positive÷positive
 Definition
=positive
Term
positive ÷ negative
 Definition
=negative
Term
negative÷ positive
 Definition
=negative
Term
negative÷ negative
 Definition
=positive
Term
positive - positive
 Definition
subtract, keep the sign of bigger number
Term
positive - negative
 Definition
LCO, answer is positive
Term
negative - positive
 Definition
add, keep the negative
Term
negative - negative
 Definition
LCO, subtract keep the sign of bigger number
Term
15 + 7
 Definition
= 22
Term
15 + (-7)
 Definition
= 8
Term
-15 + (-7)
 Definition
= (-22)
Term
-15 + 7
 Definition
= (-8)
Term
81 x 3
 Definition
= 243
Term
-81 x -3
 Definition
= 243
Term
-81 x 3
 Definition
= (-243)
Term
81 x -3
 Definition
= (-243)
Term
81/9
 Definition
= 9
Term
81/(-9)
 Definition
= (-9)
Term
(-81)/(-9)
 Definition
= 9
Term
-81/9
 Definition
= (-9)
Term
Challenge: (-2)(-7)(-2)
 Definition
= (-28)
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