The Easiest Way to Turn Off a CT-512 Calculator

PDF download Download Article
Power off your calculator by pressing these buttons
PDF download Download Article

The solar-powered CT-512 calculator doesn't have a Power button, so how do you turn it off? While your CT-512 will turn off automatically after a while, you can press a special combination of keys that will force your calculator to turn off immediately. Read on to learn how!

Turning Off a CT-512 Calculator

Press “÷” and then “×.” Then, press “%” followed by “Check.” Finally, press “Correct” twice.

Steps

PDF download Download Article
  1. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/f\/f3\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-1.jpg\/v4-460px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-1.jpg","bigUrl":"\/images\/thumb\/f\/f3\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-1.jpg\/v4-728px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-1.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    You'll see the "Divide" button on the right side of the calculator next to the number pad. [1]
  2. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/6\/63\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-2.jpg\/v4-460px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-2.jpg","bigUrl":"\/images\/thumb\/6\/63\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-2.jpg\/v4-728px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-2.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    You'll see the "Multiply" button on the right side of your calculator next to the number pad. [2]
    Advertisement
  3. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/8\/83\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-3.jpg\/v4-460px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-3.jpg","bigUrl":"\/images\/thumb\/8\/83\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-3.jpg\/v4-728px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-3.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    You'll see the "Percentage" button on the right side of your calculator next to the number pad. [3]
  4. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/2\/22\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-4.jpg\/v4-460px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-4.jpg","bigUrl":"\/images\/thumb\/2\/22\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-4.jpg\/v4-728px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-4.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    The "Check" button is in the top left corner of your calculator. [4]
  5. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/e\/e0\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-5.jpg\/v4-460px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-5.jpg","bigUrl":"\/images\/thumb\/e\/e0\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-5.jpg\/v4-728px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-5.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    It's the button that says "Correct x" and "Delete" next to the "Check" button. [5]
  6. {"smallUrl":"https:\/\/www.wikihow.com\/images\/thumb\/0\/0a\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-6.jpg\/v4-460px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-6.jpg","bigUrl":"\/images\/thumb\/0\/0a\/Turn-Off-a-CT%E2%80%90512-Calculator-Step-6.jpg\/v4-728px-Turn-Off-a-CT%E2%80%90512-Calculator-Step-6.jpg","smallWidth":460,"smallHeight":345,"bigWidth":728,"bigHeight":546,"licensing":"<div class=\"mw-parser-output\"><p>\u00a9 2024 wikiHow, Inc. All rights reserved. wikiHow, Inc. is the copyright holder of this image under U.S. and international copyright laws. This image is <b>not<\/b> licensed under the Creative Commons license applied to text content and some other images posted to the wikiHow website. This image may not be used by other entities without the express written consent of wikiHow, Inc.<br>\n<\/p><p><br \/>\n<\/p><\/div>"}
    After pressing it a second time, your calculator will turn off. [6]
    7. Advertisement

Expert Q&A

Ask a Question
200 characters left
Include your email address to get a message when this question is answered.
Submit
      Advertisement

      Video

      Tips

      Submit a Tip
      All tip submissions are carefully reviewed before being published
      Submit
      Thanks for submitting a tip for review!
      Advertisement

      You Might Also Like

      How to
      Turn off a Normal School Calculator
      How to
      Write Fractions on a Calculator
      How to
      Find Standard Deviation on the TI–84
      How to
      Reset the TI–84 Calculator
      How to Operate a Scientific Calculator: Basic Functions Explained
      How to
      Download Games Onto a Graphing Calculator
      How to
      Use a Calculator
      How to
      Write Negative Infinity (∞) on an Android Calculator
      How to Make a Program to Simplify Radicals on a TI-84: Step-by-Step Guide
      How to
      Set Decimal Places on a TI BA II Plus Calculator
      How to
      Use an Android Calculator
      How to
      Use the Google Calculator
      How to
      Use a Scientific Calculator For Algebra
      How to Solve Equations with Any TI Graphing Calculator
      Advertisement

      References

      1. ↑ https://www.youtube.com/watch?v=aGckw1crc8Y
      2. ↑ https://www.youtube.com/watch?v=aGckw1crc8Y
      3. ↑ https://www.youtube.com/watch?v=aGckw1crc8Y
      4. ↑ https://www.youtube.com/watch?v=6XIdIxraviw
      5. ↑ https://www.youtube.com/watch?v=6XIdIxraviw
      6. ↑ https://www.youtube.com/watch?v=6XIdIxraviw

      About This Article

      Article Summary X

      1. Press ÷ .
      2. Press x .
      3. Press % .
      4. Press Check .
      5. Press Correct .
      6. Press Correct again.

      Did this summary help you?
      In other languages
      Thanks to all authors for creating a page that has been read 200,279 times.

      Is this article up to date?

      Advertisement