Order of Operations Day 3

Front

What is the Order of Operations?

Back

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

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

Why is it important to follow the Order of Operations?

Back

Following the Order of Operations is important to ensure that everyone calculates expressions in the same way, leading to consistent and correct results.

Front

Evaluate: 3 + 5 × 2

Back

3 + 5 × 2 = 3 + 10 = 13 (Multiplication is done before addition).

Front

Evaluate: (4 + 6) × 2

Back

(4 + 6) × 2 = 10 × 2 = 20 (Parentheses are calculated first).

Front

What is the first step in the Order of Operations?

Back

The first step is to solve expressions inside Parentheses.

Front

Evaluate: 8 - 3 + 2

Back

8 - 3 + 2 = 5 + 2 = 7 (Subtraction is done before addition).

Front

Identify the error: 5 - 3 + 2 = 5 - 5 = 0

Back

The error is that addition was done first instead of subtraction.

Front

Evaluate: 6 ÷ 2(1 + 2)

Back

6 ÷ 2(1 + 2) = 6 ÷ 2 × 3 = 3 × 3 = 9 (Follow PEMDAS).

Front

What is the result of 10 - (2 + 3) × 2?

Back

10 - (2 + 3) × 2 = 10 - 5 × 2 = 10 - 10 = 0 (Calculate inside parentheses first).