Order of Operations

Warm Up

1) 8 + 4 - 22) 9 x 3 + 13) 7 - 3 + 54) 20 ÷ 4 + 6

-Order of

OperationsWhat do we know?

+x

÷

PEMDAS

Parentheses

Exponents

Multiplication

Division

Addition

Subtracting

Important Terms

• A mathematical phrase that contains only numbers and operations is called a numerical expression.

• To evaluate a numerical expression, you find its value.

• You can use the order of operations to evaluate a numerical expression.

Evaluate each expression.

A. 9 + 12 * 2

Evaluate

B. 4* 32 +8 -16

Evaluate

C. 8 ÷ (1 + 3) * 52 - 2

NOW IT’S YOUR TURN!

A) 15 – 10 ÷ 2

B) 8 + 14 ÷ 2 +6 * 32

C) 3 + (4 + 7) + 22

IN PAIRS!

5 * 3 +8 * 2 15 + 16

31

Closure:

How would I evaluate this numerical expression?

5 – 6 ÷ 2 + 10 * 4