PEMDAS (Order of Operations)

Word Stuff

100

Give the correct order of operations.

Parentheses, Exponents, Multiplication OR Division, Addition OR Subtraction

200

What does the word evaluate mean?

to solve

300

What are you learning about in this unit?

Fractions? Exponents? or Order of Operations?

Order of Operations

400

Tell what 5 ³ really means.

It means 5 x 5 x 5

500

The problem was 20 - 5 x 2 + 3. My answer was 33. What did I probably do wrong? What answer should I have gotten?

I went from left to right without using the correct order of operations.

13

Fix my Mistake

100

9 - 3 x 2=12

Correct answer is 3. Do x then -, not - then x.

200

5 ² + 1=11

5 ² = 25, not 10. Correct Answer is 26.

300

3² - 6 = 0

3 ² = 9, not 6. Correct answer is 3

400

4 + 5 + 7 - 3 x 2 = 26

You need to follow PEMDAS and do x first. Correct answer is 10.

500

10 ³ = 30

10 ³ = 10 x 10 x10, which is 1000, not 30.

Solve

100

3 + 4 x 5

23

200

7 + (2 x 4) - 1

14

300

56 ÷ (4+4) + 3²

16

400

20 – (5+3) x 2 + 4

8

500

(5 x 4) – 6 ÷ 2 + 9

26

Solve

100

14 - 2 x 7

0

200

49 ÷ (3+4) + 5²

32

300

5 + 14 ÷ 2 × 5

40

400

(4-1) + 5² - (5+1)

22

500

12 + (2² x 3²) - 4²

32

Random Unit 3

100

What is the learning goal for this unit? (hint: you can use Classroom or the board)

I will be able to evaluate expressions using the order of operations.

200

What does the P in PEMDAS stand for?

(parentheses)

300

What would I do first to evaluate this expression?

5² - 12 x (9 x 2)

9 x 2 in parentheses

400

What does the E in PEMDAS stand for? 

Exponents

500

As a team, create a problem with at least 3 operations for the other team to solve.

answers vary