Vocabulary
Order of Operations
Applying the Order of Operations
Solve the Problem
100
What is a variable?
A variable is a letter used to stand for a number.
100
What are the basic operations in math?
Multiplication, Division, Addition, Subtraction
100
What do you do first? 3 + 6 x (5 + 4) ÷ 3 - 7
You do what is in parentheses first.
100
3 + 4 X 6
3 + 24 = 27 Multiply first then add
200
What does PEMDAS stand for?
Parentheses, Exponents, Multiplication and Division, Addition and Subtraction
200
What comes first in the order of operations?
Do what is in parentheses first.
200
In the order of operations, which rule would have you do addition or subtraction before multiplication or division?
If addition or subtraction was in the parentheses, it would be done first.
200
4 + 5 (3 + 7)
4 + 5 (10)
4 + 50 = 54 Do parentheses, multiply, then add
300
What is an exponent?
An exponent refers to the number of times a number is multiplied by itself. For example, 2 to the 3rd power means: 2 x 2 x 2 = 8
300
What comes second in the order of operations?
Exponents
300
4 × (5 + 3)=4 × 8 What should you do first?
You should do parentheses first.
300
20 - 3 X 2 + 4
20 - 6 + 4
14 + 4 = 18
400
What is the acronym for the order of operations and what sentence can help you remember it?
PEMDAS - Please excuse my dear Aunt Sally.
400
If there is more than one multiplication or division in the equation, which one do you do first?
You do the functions from left to right.
400
10 - 7 + 9 × 5 + 28 ÷ 4 What would you do first, then second?
First solve 9 X 5, then solve 28 ÷ 4.
400
5 + 3 (6 + 4)
5 + 3 X 10
5 + 30 = 35
500
What is the Order of Operations?
The order of operations is a rule that tells the correct sequence of steps for evaluating a math expression.
500
How do you do the order of operation step by step?
First, we solve any operations inside of parentheses or brackets. Second, we solve any exponents. Third, we solve all multiplication and division from left to right. Fourth, we solve all addition and subtraction from left to right.
500
Solve: 5 + 3 (6 + 4) =
5 + 3 (6 + 4) =
5 + 3 (10) =
5 + 30 = 35
500
36 - 2 (3 + 5) + 6
36 - 2 X 8 + 6
36 - 16 + 6
20 + 6 = 26