Variables

Front

What is a variable in mathematics?

Back

A variable is a symbol, often a letter, that represents a number that can change or vary.

Front

What does it mean to solve an equation?

Back

To solve an equation means to find the value of the variable that makes the equation true.

Front

What is the equation for finding a missing number?

Back

An equation can be written in the form of 'number = variable + number' or 'number - variable = number'.

Front

If 19 - R = 14, what is R?

Back

R = 5

Front

If 16 ÷ n = 2, what is n?

Back

n = 8

Front

If 13 = p + 7, what is p?

Back

p = 6

Front

If 7 + n = 11, what is n?

Back

n = 4

Front

If 20 - x = 13, what is x?

Back

x = 7

Front

What is the purpose of using variables in equations?

Back

Variables allow us to represent unknown values and solve problems.

Front

What is an equation?

Back

An equation is a mathematical statement that shows that two expressions are equal.