Order of Operations

Front

What is the Order of Operations?

Back

A set of rules that determines the sequence in which calculations are performed in a mathematical expression.

Front

What does PEMDAS stand for?

Back

Parentheses, Exponents, Multiplication and Division (from left to right), Addition and Subtraction (from left to right).

Front

Solve: 3 + 5 x 2

Back

13 (First, multiply 5 x 2 = 10, then add 3.)

Front

Solve: (6 + 2) x 3

Back

24 (First, add 6 + 2 = 8, then multiply by 3.)

Front

What operation do you perform first in the expression 4 + 3 x (2 - 1)?

Back

You perform the operation inside the parentheses first: (2 - 1) = 1.

Front

True or False? 10 - 2 x 3 = 4

Back

False (10 - 2 x 3 = 4, but you must multiply first: 10 - 6 = 4.)

Front

What is the result of 5 - 6^2 ÷ 4 - 3?

Back

-7 (First, calculate 6^2 = 36, then 36 ÷ 4 = 9, then 5 - 9 - 3 = -7.)

Front

Explain why multiplication comes before addition in the expression 8 + 4 x 2.

Back

Multiplication is performed before addition according to the order of operations.

Front

What is the first step in solving (3 + 5) x 2 - 4?

Back

The first step is to solve the expression inside the parentheses: (3 + 5) = 8.

Front

Find the error: 7 + 2 x 3 = 27

Back

The error is in the order of operations; it should be 7 + (2 x 3) = 13.