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Math Terms Set #1

Vocabulary for chapter 1-6

QuestionAnswer
addend any number being added In the equation 4+2 = 6 the addends are 4 and 2
associative property When three or more numbers are added or multiplied, the sum is the same regardless of the grouping of the addends. Addition example: (2 + 3) + 4 = 2 + (3 + 4) Multiplication example: (2 x 3) x 4 = 2 x (3 x 4)
commutative property When two numbers are added or multiplied, changing their order does not change their sum or product Addition example: 2x3 = 6 and 3x2= 6 Multiplication example: 3+4=7 and 4+3=7
compare to determine if something is greater than, less than or equal to example: 4 < 6
divisible can be divided by For example, 18 is divisible by 6
difference the answer to a subtraction problem
distributive property redistributing numbers in a multiplication problem to create two addends. This makes it easier to do mental math with larger numbers. For example: 4 x 53 is the same as (4 x 50) + (4 x 3).
divide split into equal parts or groups
dividend the number that is divided by another number (this is the number that is "inside the house¨)
divisor the number that is doing the dividing (this is the number that is ¨ outside the house¨)
equation a number sentence with an equal sign 10+9=19
estimate/approximate rounding numbers to make them easier to add/subtract/multiply or divide
factor two or more numbers multiplied together
inverse operations two operations that are the opposite of each other addition is the opposite of subtraction subtraction is the opposite of addition
word form the number written out in words 1,752 is one thousand seven hundred fifty two
expanded form the number stretched out to show place values 1,752 is 1000+700+50+2
standard form just writing out the numbers 1,752
variable an unknown number which can be represented with a letter or a symbol - variables will change based on the equation Example: n+9=10 n=1
sum the answer to an addition problem
product the answer to a multiplication problem
subtract to take away or remove (minus)
remainder the leftovers in a division problem
reasonableness an answer based on good sense
Created by: user-1607524
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