How To Make A Negative Sign With The TI-84 Plus

Working with negative numbers is an important skill in math. Negative values are common with scales that go below zero, such as the Fahrenheit scale for temperature. You can treat a decreasing quantity as a negative increase. The TI-84 Plus, a graphing calculator, has a special key you use to enter a negative number.

1. Turn on Calculator

Turn on the calculator by pressing the "ON" key in the bottom left corner.

2. Enter Negative Sign

Press the (-) key in the bottom right corner to make a negative sign. Be aware that the subtraction button does not work as a negative sign.

3. Enter Numerical Value

Enter a number using the keyboard. For example, pressing (-) and then 3 will display "-3," which corresponds to the value of negative three. You can make a number of any size a negative number.

4. Complete Calculation

Enter the rest of your calculation. You can use the same mathematical operations for negative values as you would with positive values.