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Integers
Fractions
Decimals
Vocabulary
100

h - 21 = 52

What is 73

100
z - 2/9 = 1/9
What is 3/9
100

y + 16.7 = 49

What is = 32.3

100
A phrase to help you remember how to write a related additon problem
What is "add the opposite"
200

m - 5= 31

What is 36

200

2/4 + x = 7/4

What is 5/4

200
c + 5.98 = 9.1
What is 3.12
200
The symbol used to represent a number not yet known.
What is a variable
300

n + 14 = 31

What is 17

300

5/15 + r = 18/15

What is 13/15

300

y- 57 = 2.8

What is 59.8

300
Another way of saying the variable is by itself on one side of the equal sign.
What is isolated
400

p +13 = 71

What is 58

400

t - 3/4 = 25/4

What is 7 or 28/4

400

18 = 9.6 + f

What is 8.4

400
The math term for the answer to an equation
What is a solution
500

45 + x = 90

What is 45

500

9/10 + x = 19/10

What is 1 or 10/10

500

h + 5.6 = 8.2

What is 2.6

500
Operations that undo each other are called this
What is inverse operations