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 ² + 1=11

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

300

10³ = 30

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

400

4 + 5 + 7 - 3 x 2 = 26

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

500

(4 - (-2)) x 10 = 20

4 - (-2) = 6, not 2. Correct answer is 60.

Level 1

100

(12 - 8) + 3

7

200

14 - 2 x 7

0

300

7 + (2 x 4) - 1

14

400

5 + 14 ÷ 2 × 5

40

500

(5 x 4) – 6 ÷ 2 + 9

26

Level 2

100

(4-1)² + (5+ 1)²

45

200

49 ÷ (3+4) + 5²

32

300

20 ÷ (2 + (7 - 4))

4

400

1² + 2² x 3² - 4²

21

500

(3 x (4 - 9)) ÷ (35 ÷ 7)

-3

Level 3

100

0 x (999999 + 567383194754 - 4326193785 x 4739)

0

200

3⁵ ÷ 3² ÷ 3² ÷ 3

1

300

125 + 216 ÷ 36 - (4)² x 6

35

400

(2 x 6 - (4 + 2)) ÷ ((2 - 4 - 4) ÷ (2 - 1))

-1

500

(3 x 2 ÷ 6 + 2 x 3 ÷ 6) ÷ (3² + 2² + 1²)

2/14 or 1/7 or 0.1428....