### Home > MC1 > Chapter 2 > Lesson 2.1.2 > Problem 2-21

2-21.

Use the numbers

To begin finding answers to this problem, think about the different numbers you can make by mathematically combining

Remember that one of your answers must have a value of

Timmy came up with the following expression using

What is the value of Timmy's expression?

Using Timmy's expression as a starting point, write two more expressions of your own.