variables and expressions

A letter or symbol that represents an unknown amount. It can vary or change.

Nao has 6 fewer books than Emily. Emily has c books. How many books does Nao have?

a number decreased by 12.

6 divided by a number.

subtract a number from 10

A mathematical phrase involving variables, numbers, and operations.

You and 3 friends are sharing a package of snacks equally. Which expression shows the situation

The product of 9 and a number