Show:
Miscellaneous
Multiplication & Addition
Multiplication & Subtraction
Division & Addition
Division & Subtraction
100
A letter used to represent an unknown number
What is a variable?
100

2k + 5 = 17

What is k=6 ?

100

3a - 5 = 4

What is a=3 ?

100

m/5 + 4 = 12

What is m=40 ?

100

z/6 - 8 = 2

What is z=60?

200
The opposite of addition
What is subtraction?
200

2a + 11 = 35

What is a=12 ?

200

5m - 7 = 23

What is m=6 ?

200

y/8 + 11 = 13

What is y=16 ?

200

y/9 - 15 = 5

What is y=180 ?

300
The four basic operations
What are addition, subtraction, multiplication, and division?
300

2r + 39 = 65

What is r=13 ?

300

6k - 5 = 43

What is k=8 ?

300

k/8 + 21 = 97

What is k=608 ?

300

z/6 - 14 = 3

What is z=102 ?

400
A number right in front of a variable
What is a coefficient?
400

12s + 27 = 171

What is s=12 ?

400

4j - 71 = 29

What is j=25 ?

400

g/11 + 37 = 128

What is g=1001?

400

y/9 - 18 = 52

What is y=630 ?

500

How do we undo multiplication? 

What is division? 

500

19b + 314 = 1663

What is b=71 ?

500

21q - 39 = 234

What is q=13 ?

500

w/317 + 596 = 1,639

What is w=330,631?

500

d/10 - 83 = 64

What is d=1470 ?