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Miscellaneous
Multiplication & Addition
Multiplication & Subtraction
Division & Addition
Division & Subtraction
100

A letter used to represent an unknown number

Variable

100

2k + 5 = 17

6 

100

3a - 5 = 4

3

100

m/5 + 4 = 12

40

100

z/6 - 8 = 2

60

200

The opposite of addition

Subtraction

200

2a + 11 = 35

12 

200

5m - 7 = 23

6

200

y/8 + 11 = 13

16 

200

y/9 - 15 = 5

180

300

The four basic operations

Addition, subtraction, multiplication, and division

300

2r + 39 = 65

13

300

6k - 5 = 43

8 

300

k/8 + 21 = 97

608 

300

z/6 - 14 = 3

102

400

A number right in front of a variable

Coefficient

400

12s + 27 = 171

12

400

4j - 71 = 29

25

400

g/11 + 37 = 128

1188 

400

y/9 - 18 = 52

630

500

What is the Order of Operations?

1. () groups

2. Exponents

3. Multiplication and division

4. addition and subtraction  

500

19b + 314 = 1663

71

500

21q - 39 = 234

13 

500

w/317 + 596 = 1,639

330,631

500

d/10 - 83 = 64

1470