Scientific Notation on a Graphing Calculator

Warm-Up

What is the purpose of

using scientific

notation to express

values of numbers?

How to tell a graphing calculator to automatically express numbers in

scientific notation

1. Press the MODE key.

MODE

2. Highlight the SCI section by using the right arrow key.

3. Press ENTER to select.

4. To return to the home screen, press 2ND and then MODE.

5. Type the number 123,456 and press ENTER.

The number will appear as a decimal with E5 to show place value.

1.23456 x 105

Write each number in scientific notation.

Example Problems

14,140,000

Write each number in scientific notation.0.00876

Write each number in scientific notation.0.114

How to express scientific notation numbers in normal mode

1. Press the MODE key and highlight NORMAL.

2. Press ENTER.

3. Press 2ND and then MODE key to return home.

4. Type 1.23

5. Press then 2nd key and then the comma (,) key to access EE.

EE ,

6. Type in the exponent 4.

7. Press ENTER. Your number should look like the picture below.

7.42 x 10Write each number in standard form

5

Example Problems

6.1 x 10Write each number in standard form

- 2

3.714 x 10Write each number in standard form

2

Up Next…Activity 1:

Scientific Notation in the Real World