PEMDAS (Order of Operations)

Word Stuff

100

Give the correct order of operations.

Parentheses, Exponents, Multiplication OR Division, Addition OR Subtraction

200

Why is it important to know PEMDAS as a mathematician?

So everyone can solve every problem the same (correct) way.

300

What is the saying we use to remember the correct Order of Operations?

Please Excuse My Dear Aunt Sally.

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 do wrong?

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

Fix my Mistake

100

9 - 3 x 2=12

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

200

5 x 5 + 1=11

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

300

25 - 2 + 7 = 16

Correct answer = 30

In the original, you added before you subtracted. However, we go from left to right with addition and subtraction.

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) + (5 x 2)

17

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 x 1) + (5 ÷ 1)

9

500

(20 x 3) - (45 ÷ 9)

55

Bonus

100

How many students are in our 5th grade pod (just McAtee, Davidson, and Lacy Homerooms)?

65

200

How many teachers are there teaching grades 3-5 at our school?

25

300

What is your teacher's cat's name? (there are 2 possible answers...)

Mr. Pickles or just Pickles

400

What is 17.5 x 10²

1,750

500

What is Mrs. Davidson's favorite color?

Yellow