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### 7 Cards in this Set

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• Back
 Addend A part of an addition mathematical problem Sum The answer to an addition mathematical problem Order Property Rearranging the grouping of parts does not effect the whole Fact family A family of numbers that can be added and subtracted 1+2=3 2+1=3 3-1=2 3-1=2 Grouping property Grouping numbers that are to be solved first and then solve the rest of the problem (2+3)+1=6 2+(3+1)=6 Differences The answer to a subtraction problem Doubles two of the same numbers in an addition or subtraction problem 4+4=8 2+2=4 3+3=6