Variables

Front

What is a variable in math?

Back

A variable is a symbol (like n, c, or t) that represents a number we don't know yet.

Front

What does the equation 7 + n = 11 mean?

Back

It means that if you add a number n to 7, you get 11.

Front

How do you find the value of n in the equation 7 + n = 11?

Back

You subtract 7 from 11. So, n = 11 - 7, which is n = 4.

Front

What is the equation 6 x c = 12 asking?

Back

It is asking what number c, when multiplied by 6, gives 12.

Front

How do you solve 6 x c = 12?

Back

You divide 12 by 6. So, c = 12 ÷ 6, which is c = 2.

Front

What does the equation 3 x t = 15 mean?

Back

It means that if you multiply a number t by 3, you get 15.

Front

How do you find the value of t in the equation 3 x t = 15?

Back

You divide 15 by 3. So, t = 15 ÷ 3, which is t = 5.

Front

What does the equation 19 - R = 14 mean?

Back

It means that if you subtract a number R from 19, you get 14.

Front

How do you solve 19 - R = 14?

Back

You subtract 14 from 19. So, R = 19 - 14, which is R = 5.

Front

What does the equation n = 4 + 12 mean?

Back

It means that n is the result of adding 4 and 12.