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Math voc. unit 2 H.M

Unit 2 Math vocab flash cards

QuestionAnswer
Associative Propertyof Addition The property which states that the way in which addends aregrouped does not change the sum. It is also called theGrouping Property of Addition.Example: (2  3)  4  2  (3  4)
CommutativeProperty of Addition The property which states that the order of addendsdoes not change the sum. It is also called theOrder Property of Addition.Example: 6  7  7  6
compatible numbers Numbers that are easy to compute mentally.327773257540032777 is about 400.
difference The answer to a subtraction problem.Example: 10  7  3difference
estimate A number close to an exact amount that tells abouthow much or about how many, or to find an answerthat is close to the exact amount.
fact family Related facts using the same numbers.A fact family for 2, 4, and 6:2  4 6 4 2  66  4 2 6 2  4A fact family for 3, 5, and 15:3  5  15 5  3  1515  5 3 15  3  5
front-end estimation A method of estimating sums, differences,products, and quotients using front digits.Example: Add the front-end digits.473 + 128 is about 500.
palindrome A word or number that reads the same forward and backward.Examples: RACECAR and 5,445
regroup To use place value to exchange equal amountswhen renaming a number.
sum The answer to an addition problem.Example: 5  6  11sum
Zero Property ofAddition The property which states that the sumof any number and 0 is that number.Example: 5  0  5
Created by: ssims2
 

 



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