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Math Vocabulary

Chapter 5

expression a part of a number sentence that has numbers and operation signs but does not have an equal sign
variable a letter or symbol that stands for a number or numbers
order of operations a special set of rules that can be used to solve an expression with more than one operation
parentheses the symbols used to show which operation or operations in an expression should be done first
equation a number sentence which shows that two quantities are equal
inequality a mathematical sentence that shows two expressions do not represent the same quantity
less than or equal to (≤) a symbol used to compare quantities when the first is less than or equal to the second
greater than or equal to (≥) a symbol used to compare quantities when the first is greater than or equal to the second
zero property the product of 0 and any number is 0
identity property the product of 1 and any number is that number
commutative property you can multiply two factors in either order and get the same product
associative property you can group factors in different ways and get the same product
distributive property multiplying a sum by a number is the same as multiplying each additional addend by the number and then adding the products
Created by: RossCoops3