Pemdas and Evaluating Expressions

Front

What does PEMDAS stand for?

Back

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

Front

What is the first step in evaluating an expression using PEMDAS?

Back

The first step is to solve any operations inside Parentheses.

Front

Evaluate: 3 + 5 × 2

Back

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

Front

Evaluate: (4 + 6) ÷ 2

Back

5 (First, add 4 + 6 = 10, then divide by 2.)

Front

What is an exponent?

Back

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

Front

Evaluate: 2³

Back

8 (2 × 2 × 2 = 8)

Front

What is the order of operations?

Back

The order of operations is the sequence in which operations should be performed: Parentheses, Exponents, Multiplication and Division, Addition and Subtraction.

Front

Evaluate: 16 ÷ 2² + 6 - 2

Back

6 (First, calculate 2² = 4, then 16 ÷ 4 = 4, then 4 + 6 - 2 = 8.)

Front

Evaluate: -2 ⋅ (3 + 8 ÷ 4)²

Back

-50 (First, calculate 8 ÷ 4 = 2, then 3 + 2 = 5, then 5² = 25, finally -2 × 25 = -50.)

Front

Evaluate: |12| + (32 ÷ 4)

Back

20 (|12| = 12, and 32 ÷ 4 = 8, then 12 + 8 = 20.)