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6th Chap 2 Vocab

6th Grade Chapter 2 Operation Sense Vocabulary

numerical expression mathematical phrase that includes only numbers and operation symbols: 4 + 5
variable letter or symbol that can stand for one or more numbers
algebraic expression mathematical phrase that includes a variable 76 – a
evaluate find the value or solve
equation a statement showing the two quantities are equal: 4 x 4 = 14 + 2
solution a value that, when substituted for the variable, makes an equation true; 76 – a = 45, a = 31
Commutative Property property that states the order of addends or factors does not change the sum or product 34 + 41 = 41 + 34
Associative Property property that states the way addends or factors are grouped does not change the sum or product 15 x (6 x 34) = (15 x 6) x 34
Distributive Property property that states multiplying a sum by a number is the same as multiplying each addend by the number tend then adding the products 14 x (7 + 3) = (14 x 7) + (14 x 3)
Identity Property of Addition property that states the sum of zero and any number is that number 58 + 0 = 58
Identity Property of Multiplication property that states the product of 1 and any number is that number 86 x 1 = 86
compensation a mental math strategy in which you change one addend to a multiple of ten and then adjust the other addend to keep the balance
exponent a number that tells how many times a base is to be used as a factor
base a number used as a repeated factor
order of operations rules to follow to evaluate numerical expressions
Created by: dselling