Order of Operations

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What is the Order of Operations?

Back

A set of rules that determines the sequence in which calculations are performed in a mathematical expression. The order is Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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CCSS.7.NS.A.3

Front

What does PEMDAS stand for?

Back

PEMDAS is an acronym for Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

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CCSS.6.EE.A.1

Front

Back

16 (First, multiply 2 and 3 to get 6, then add 10.)

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CCSS.7.NS.A.3

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Back

10 (First, subtract 3 from 8 to get 5, then multiply by 2.)

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

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Back

9 (3 squared means 3 multiplied by itself.)

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CCSS.6.EE.A.1

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Back

30 (First, subtract 4 and 2 to get 2, then multiply by 12 to get 24, and finally add 6.)

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CCSS.7.NS.A.3

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Back

7 (First, multiply 3 and 2 to get 6, then add 5 to get 11, and finally subtract 4.)

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is the purpose of parentheses in mathematical expressions?

Back

Parentheses indicate which operations should be performed first in an expression.

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

Back

15 (First, calculate inside the parentheses: 2 + 3 = 5 and 4 - 1 = 3, then multiply 5 and 3.)

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CCSS.5.OA.A.1

CCSS.5.OA.A.2

Front

What is an exponent?

Back

An exponent indicates how many times a number (the base) is multiplied by itself.

Tags

CCSS.6.EE.A.1