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11 Cards in this Set

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In algebraic addition, we let the signs tell us whether the numbers are positive or negative, and we mentally insert parentheses and extra _______ signs as necessary.
plus
The sum of any real number and its opposite is _____.
zero
The only number that does not have an additive inverse is _____.
zero
What is the opposite of 1/2?
-1/2
What is the additive inverse of 15?
-15
Simplify: -5-2+7-6
(-5)+(-2)+(+7)+(-6)=
(-7)+(+7)+(-6)=
(0)+(-6)=
-6
In algebraic addition, 4-3+2 means (+4)+(__)+(+2).
-3
Another name for the opposite of a number is the _________ ___________ of the number.
additive inverse
To add two signed numbers that have the SAME sign, we add the absolute values of the numbers and _______ the sign.
copy
a-b=a+(__)
-b
To add two signed numbers that have DIFFERENT signs, we subtract the absolute values of the numbers and think " the ________ army wins."
biggest