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 6 ?
100
3a - 5 = 4
What is 3 ?
100

  m/5 + 4 = 12  

What is 40 ?

100

 

z/6 - 8 = 2

What is 60?

200
The opposite of addition
What is subtraction?
200
2a + 11 = 35
What is 12 ?
200
5m - 7 = 23
What is 6 ?
200

 

y/8 + 11 = 13

What is 16 ?

200

 

y/9 - 15 = 5

What is 180 ?

300

The inverse of division

What is multiplication?

300
2r + 39 = 65
What is 13 ?
300
6k - 5 = 43
What is 8 ?
300

 

k/8 + 21 = 97

What is 608 ?

300

 

z/6 - 14 = 3

What is 102 ?

400

The inverse of subtraction

What is addition?

400
12s + 27 = 171
What is 12 ?
400
4j - 71 = 29
What is 25 ?
400

 

g/11 + 37 = 128

What is 1001?

400

 

y/9 - 18 = 52

What is 630 ?

500

The inverse of Multiplication

What is division?

500
19b + 314 = 1663
What is 71 ?
500
21q - 39 = 234
What is 13 ?
500

 

w/317 + 596 = 1,639

What is 330,631?

500

 

d/10 - 83 = 64

What is 1470 ?