Do Now Simplify the following expressions:

2 + 3 x 6 – 7(2 - 1)

8 x 2 + 9 ÷ 3 – 5²

21 – 14 ÷ 7 + 8 x 3

3(6 - 4) x 5 - 15 ÷ 3

2 + 3 x 6 – 7(2 - 1)

8 x 2 + 9 ÷ 3 – 5²

21 – 14 ÷ 7 + 8 x 3

3(6 - 4) x 5 - 15 ÷ 3

13- 6

4325

Family Dinner

“What are you getting, deary?” asked my Aunt Sally.

“I was thinking of getting a salad. What about you Aunty?” I asked.

“Oh I don’t know…there’s nothing that appeals to me. Why did we have to come here for dinner? There are so many nicer

places.”

I glanced over at my mother to see her shaking her head. Just then the waiter

came by and took our orders. When it was my Aunt’s turn to order, she made a fuss

about the choices.

I looked at the waiter apologetically and

said to him “Sir, Please Excuse My Dear Aunt Sally”

The Order of The Order of OperationsOperations

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

Step 1Step 1

look for (parentheses) & simplify anything inside them

multiply & divide

go from left to right

add & subtract

go from left to right

6÷2(1+2)What’s the correct

answer?

1 9

6÷2(1+2) Parentheses

6÷2(3) Multiplication & Division

3(3) 9

(6 + 5) × (3 × (7 + 3))

27 ÷ 3 (5 – 3)² 8 x 2 + 3 - 10 ÷ 5 + (6 – 3²) x 4

5² - 4 x 3 ÷ 12 (7 - 5)

21

3 4330

23

28

5

(6 + 5) × (3 × (7 + 3))

11 × (3 × 10)

11 × 30

330

Parentheses

Parentheses

Multiply

5² - 4 x 3 ÷ 12 (7 - 5)

5² - 4 x 3 ÷ 12 (2)

25 - 4 x 3 ÷ 12 (2)

25 - 12 ÷ 12 (2)

25 - 1(2)

25 - 2

23

Parentheses

Exponents

MultiplicationDivision

MultiplicationSubtraction

27 ÷ 3 (5 – 3)²

27 ÷ 3 (2)²27 ÷ 3 (4)

9 (4)

28

Parentheses

Exponents

Division

Multiplication

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