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vocabulary for 6th grade math chpter 1-3

distributive property Example: 5*(3+4)=5*3+5*4
identity property of addition states that the sum of zero and any number is that same number 5+0=5
commutative property of addition or multiplication states that if the order of the addends or factors is changed, the sum or product remains the same 6*7=7*6
zero property of multiplication states that the product of any number and zero is zero 2*0=0
associative property of addition and multiplication states that changing the grouping of the addends or factors does not change the sum or the product
identity property of muliplication states that the product of a number and one is that same number 9*1=9
evaluate to find the answer or value of an expression
exponent the number that tells how many times a factor(base) is to be multiplied together
variable a letter or symbol that stands for an unknown number x + 3 = 18 x=15
clustering a method of estimation used when all the addends are about the same 52+49+51 about 50*3
numerical expression a phrase used in math that contains only numbers and operation symbols 5*7+4
compatible numbers pairs or groups of numbers that are easy to compute in your head 4*25*8
estimate an approximate answer after rounding two or more numbers 27 + 57 is about 30+60=90
distributive property Example: 5*(3+4)=5*3+5*4
identity property of addition states that the sum of zero and any number is that same number 5+0=5
commutative property of addition or multiplication states that if the order of the addends or factors is changed, the sum or product remains the same 6*7=7*6
zero property of multiplication states that the product of any number and zero is zero 2*0=0
associative property of addition and multiplication states that changing the grouping of the addends or factors does not change the sum or the product
identity property of muliplication states that the product of a number and one is that same number 9*1=9
evaluate to find the answer or value of an expression
exponent the number that tells how many times a factor(base) is to be multiplied together
variable a letter or symbol that stands for an unknown number x + 3 = 18 x=15
clustering a method of estimation used when all the addends are about the same 52+49+51 about 50*3
numerical expression a phrase used in math that contains only numbers and operation symbols 5*7+4
compatible numbers pairs or groups of numbers that are easy to compute in your head 4*25*8
estimate an approximate answer after rounding two or more numbers 27 + 57 is about 30+60=90
decimal another way of writing a fraction which is part of a whole
composite number a whole number greater than 1 that has more than two factors
prime number a whole number greater that 1 that has only two factors,1 and itself
greatest common factor the greatest divisor that two or more numbers have in common
least common multiple the smallest multiple that two or more number have in common
prime factorization a number divided into the product of all its prime factors 24=2*2*2*3
base the number that is with an exponent which is used as the repeated factor 5*5*5=5^3
compensation used in estimating when you change one number to a multiple of ten and adjust the other number to keep the balance 27+18= 30 +15=45(added 3 to 27 and subtracted 3 from 18)
distributive property Example: 5*(3+4)=5*3+5*4
identity property of addition states that the sum of zero and any number is that same number 5+0=5
commutative property of addition or multiplication states that if the order of the addends or factors is changed, the sum or product remains the same 6*7=7*6
zero property of multiplication states that the product of any number and zero is zero 2*0=0
associative property of addition and multiplication states that changing the grouping of the addends or factors does not change the sum or the product
identity property of muliplication states that the product of a number and one is that same number 9*1=9
evaluate to find the answer or value of an expression
exponent the number that tells how many times a factor(base) is to be multiplied together
variable a letter or symbol that stands for an unknown number x + 3 = 18 x=15
clustering a method of estimation used when all the addends are about the same 52+49+51 about 50*3
numerical expression a phrase used in math that contains only numbers and operation symbols 5*7+4
compatible numbers pairs or groups of numbers that are easy to compute in your head 4*25*8
estimate an approximate answer after rounding two or more numbers 27 + 57 is about 30+60=90
decimal
composite number
prime number
least common multiple
prime factorization
compensation
Created by: andersonbec