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Add with Variables
Subtract with variables
multiply with variables
Order of Operations
word expressions
100

3a +  6a  

9a

100

10n  -  2n  

8n

100

 2x *  3x

6 x2

100
What does PEMDAS stand for?

Parentheses

Exponents

Multiplication

Division

Addition

Subtraction

100

 add 5 and 2

5 + 2

200

10n +  12n  

22n

200

60 x -  20x 

40x

200

10x  *  2 n

20 nx

200

 10 +  5  *  8

50

200

10 less than  20

20-10

300

8 x2   +   3 x2

 11 x2

300

65x2  -  25x2 

40 x2

300

15 x  *  15 x2 

225 x3

300

30 -  2  *  6

18

300

5 times 17

5 * 17

400

100 n5   +  200 n5  

300 n5

400

100 m2  -  100 m2 

0

400

5x2   *  10m2

50 m2x2

400

 23  +   10  - 5

13

400

22 less than p

p - 22

500

45 x  + 25n 

not possible

500

250 x - 200b

no answer

500

3m * 5x * 10c

150cmx

500

(30 - 15)2  +  100

325

500

what is the product of 2 and x

2x