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

Evaluate: 2 + 3 × 4

Back

14 (First, multiply 3 × 4 = 12, then add 2.)

Front

Evaluate: (5 + 3) × 2

Back

16 (First, add 5 + 3 = 8, then multiply by 2.)

Front

Evaluate: 10 - 2 × 3

Back

4 (First, multiply 2 × 3 = 6, then subtract from 10.)

Front

Evaluate: 6 + 2 × (3 - 1)

Back

10 (First, solve inside the parentheses: 3 - 1 = 2, then multiply: 2 × 2 = 4, and finally add: 6 + 4 = 10.)

Front

What is the result of 8 ÷ 2 + 3?

Back

7 (First, divide 8 ÷ 2 = 4, then add 3.)

Front

Evaluate: 4 × (2 + 3) - 5

Back

15 (First, solve inside the parentheses: 2 + 3 = 5, then multiply: 4 × 5 = 20, and finally subtract: 20 - 5 = 15.)

Front

What is the importance of using parentheses in expressions?

Back

Parentheses indicate which operations should be performed first, altering the order of operations.

Front

Evaluate: 3 + 4 × 2 - 1

Back

10 (First, multiply 4 × 2 = 8, then add 3 and subtract 1: 3 + 8 - 1 = 10.)