PEMDAS (Order of Operations) Rm 207

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.

Solve Easy

100

3 x 2 - 9

3

200

5 ² + 1

 26

300

3²  - 6

3

400

4 + 5 + 7 - 3 x 2

10

500

10 ³ 

1000

Solve Medium

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 Hard

100

14 - 2 x 7

0

200

49 ÷ (3+4) + 5²

32

300

5 + 14 ÷ 2 × 5

40

400

(4-1)² + (5+ 1)²

45

500

1² + 2² x 3² - 4²

21

Random Trivia

100

How do we multiply a whole number by a fraction? 

For example, 3 x 1/3 

You multiply the whole number by the numerator and leave the same denominator. Then you reduce. 

200

How do you divide a whole number by a fraction? 

KFC

Keep the first factor, flip the sign to multiplication, and flip the second factor to the reciprocal. 

300

How do you divide a fraction by a whole number? 

You leave the fraction the same, flip the sign to multiplication, and change the whole number to the reciprocal. 

400

What is 10.5 x 5?

52.5

500

What is 103.2 / .3

344