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5th Math 2
Math Connects Chapter 2
Question | Answer |
---|---|
Addend | Any number being added together |
Compatible Numbers | Numbers in a problem or related numbers that are easy to work with mentally. 720 and 90 are compatible for division because 72 /9 = 8 |
Compensation | Adding an amount to one addend and subtracting, the same amount from the other addend to add mentally. |
Round | means to change the value of a number to one that is easier to work with. |
Estimate | a number close to an exact value or indicates about how much |
Associative Property of Addition | property that states that the way in which numbers are grouped does not change the sum. Example: (3+4) +3= 3+(4+3) |
Communative Property of Addition | property that states that order in which numbers are added does not change the sum. Example: 2.3 +1.7=1.7+2.3 |
Identity Property of Addition | property that states that the sum of any number and 0 equals the number. Example: 115 + 0 = 115 |