PEMDAS

PEMDAS 1

100

Evaluate:

5 - 1 x 4 + 3 

 4

200

Evaluate:

18 ÷ 6 × (4 - 3) + 6 

9

300

Evaluate:

64 ÷ 8 + 30 - 15 ÷ 3

33

400

Evaluate:

8 ÷ (10 − 9) + 3 × 7 + 4 

33

500

Why is PEMDAS important?

It's the "grammar" of math language so that everyone in the entire world evaluates a numerical expression and gets the same answer every time.

PEMDAS 2

100

What comes first in Order of Operations?

parenthesis (or brackets)

200

Evaluate:

5 x (7 -2) + (8+1)

34

300

Evaluate

24 ÷ 8 × (4 - 3) + 7²

52

400

Evaluate:

[(7 − 5) + 2 ÷ 2] × (3 + 4 + 10) 

51

500

Evaluate:

(8 - 5 )³ − (9 − 7) ÷ 2 

26

PEMDAS 3

100

Can you Subtract before you Add in PEMDAS? Why?

Yes.  If subtraction appears first, from left to right.

200

Evaluate:

(19 - 7) ÷ 4 + 11

14

300

Evaluate:

9 + 4 × 16 ÷ 4 - 7 

18

400

Evaluate:

(62 + 4 ) ÷ 6 − 2 × 3 ÷ 2  

8

500

Evaluate:

10² + 8 − 6  + ( 6 x 1)²

 138

PEMDAS 4

100

The last step in PEMDAS.

Addition or Subtraction

200

4 x (9 - 2 + 3) ÷ 4 

10

300

Evaluate:

21 ÷ 3 + (3 × 9) 

34

400

Evaluate:

4 × (7 + 8 − 10)+ 10 ÷ 5

22

500

Evaluate:

5^{2 +} 2²

29

PEMDAS 5

100

Evaluate:

(19 - 7) ÷ 4 - 2

1

200

9 ÷ 3²

1

300

What operations are tied for third place in Order of Operations?

Multiplication and Division

400

Evaluate:

3 x (3 + 3) - 3 

15

500

10⁵

100,000