4th Grade Math AAP Quiz: Variables and Equations

What is a variable in mathematics?

• A fixed number

• A letter or symbol representing a changing value

• A completed math problem

• The result of a calculation

Identify the variable in this equation: y + 3 = 9

• 3

• =

• y

• 9

What best defines an equation?

• Numbers being added

• A sentence showing two equal expressions

• A math symbol

• Numbers being multiplied

Which one is an equation?

• a+b

• 2,4,6,8

• 5 - 2 = 3

• 10,20,30

Solve using the Cover Up Method: 4N + 6 = 54

• 12

• 5

• 6

Solve using the Cover Up Method: 3R + 9 = 39

• 4

• 10

• 6

• 3

Solve using the Cover Up Method: 6E ÷ 3 = 8

• 2

• 3

• 4

• 8

Solve using the Cover Up Method: 5N + 10 = 45

• 5

• 6

• 7

• 8

Solve using the Cover Up Method: 4S ÷ 2 = 16

• 2

• 8

• 6

• 12

Solve using the Cover Up Method: 7X + 5 = 103

• 10

• 12

• 14

• 7