5th Grade Math Vocab. Operations & Algebraic Thinking

Question 1

To replace a variable in an expression with a number, then solve it. Ex:4 + a a = 5 4 + 5 = 9

Accepted Answer

evaluate expression

Question 2

Ex: 6 x (10 + 4) (6 x 10) + (6 x 4) 60 + 24 = 84 Which property is this showing?

Accepted Answer

Distributive Property

Question 3

An ordered set of numbers, the order helps predict what will come next. Ex: 2, 4, 6, 8, 10

Accepted Answer

numerical pattern

Question 4

Math symbols ( ) [ ] show what operation goes 1st in the order of operations. Ex: 3 x [4 + 2]

Accepted Answer

brackets

Question 5

A mathematical calculation.The 4 basic are addition, subtraction, multiplication and division.

Accepted Answer

operations

Question 6

Standard procedure followed in pattern/expression. Ex:1, 2, 4, 8, 16, 32 Double previous number

Accepted Answer

rule

Question 7

A symbol for a number we don't know yet. It is usually a letter, x or y. Example: 7 + x = 10

Accepted Answer

variable

Question 8

Variable or combination of variables, numbers, and symbols represent a relationship. Ex:d + 8

Accepted Answer

expression

Question 9

The sum stays the same when the grouping of addends is changed. Ex:(5 + 7) + 3 = 5 + (7 + 3)

Accepted Answer

Associative Property

Question 10

Symbol or symbols (,) in expression that show which operation goes first. Ex: 3 + (2 - 1)

Accepted Answer

parenthesis

Question 11

An agreed upon order for performing operations to simplify expressions. Ex: P, E, M, D, A, S

Accepted Answer

order of operations

Question 12

The sum stays the same when the order of the addends is changed. Ex: 5 + 3 = 3 + 5

Accepted Answer

Commutative Property

Questions 12