5th Grade 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 these  (   ) called?

These are called Parentheses.

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 + 1 X 3 -6+ 7 

19

What is 9?

300

(5x5)+3x5+1

141

 Not 6. Correct answer is 41

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 1

100

3 + 4 x 5

23

200

7 + (2 x 4) - 1

What is 14?

300

56 ÷ (4+4) + 5

What is 12?

400

20 – (5+3) x 2 + 4

What is 8?

500

(5 x 4) – 6 ÷ 2 + 9

What is 26?

Solve 2

100

14 - 2 x 7

What is 0?

200

49 ÷ (3+4) + 5

What is 12?

300

5 + 14 ÷ 2 × 5

What is 40?

400

7+ (5+ 1) X 9

What is 61?

500

7(2x20)+100

What is 380?