How to Turn off a Normal School Calculator

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Are you using a solar, graphing, scientific, or regular calculator at school but can't figure out how to turn it off? Don't worry—almost all calculators are designed to turn off automatically after a few minutes of no use. But if you need to turn the calculator off immediately, we can help! This wikiHow will teach you which button combinations to enter to turn off the most common school calculators, including Casio, Citizen, TI-84 , and more.

Method 1
Method 1 of 6:

Using a Solar or Regular Calculator

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  1. Wait for the calculator to turn off. Most calculators will turn themselves off after not being used for a few minutes. If you don't need it, just set it aside for a few minutes and it should turn off on its own.
  2. One of the following combinations may shut off your calculator. Press and hold the buttons shown:
    • 2 3
    • 5 6
    • ÷ ×
    • 9 -
    • 1 2 4 6
    • 1 3 4 5
    • 1 2 3
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  3. With the right combination of keys above, this should shut off the calculator.
  4. You may be able to force a solar calculator off by placing your thumb over the entire solar strip. Once the calculator stops receiving light, it should begin to dim and then shut down.
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Method 2
Method 2 of 6:

Using Citizen Calculators

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  1. Citizen calculators shut off about eight minutes after the last input. Your calculator should shut off on its own. [1]
  2. This combination of buttons will turn off most Citizen brand calculators:
    • ON ÷ × % Check Correct Correct
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Method 3
Method 3 of 6:

Using a Texas Instruments Graphing or Scientific Calculator

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  1. On most TI graphic calculators , 2nd is the colored button on the left side. The color is different on different models, but it's usually stands out from the rest of the buttons. "On" is usually on the right side above the number buttons.
    • On some calculator models, the "On" button may be in the lower-left corner.
  2. This unlocks the secondary key functions for all the keys.
  3. This will turn the graphing calculator off.
    • To turn off a TI Nspire, press Ctrl followed by On . [2]
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Method 4
Method 4 of 6:

Using a Casio Graphing or Scientific Calculator

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  1. On most Casio graphing and scientific calculators , the "Shift" button is in the upper-left corner below the screen. The "On" button is on the right side, above the number buttons. [3]
  2. This button unlocks all the secondary functions for the buttons.
  3. The secondary function for "AC" is off. This turns off the calculator. [4]
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Method 5
Method 5 of 6:

Using HP Graphing or Scientific Calculators

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  1. On most HP calculators, the "Shift" key is on the left side. The "On" button is either on the right side, or in the lower-left corner.
  2. This unlocks secondary key functions.
  3. The secondary key function for "On" turns the calculator off. [5]
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Method 6
Method 6 of 6:

Using a Casio DJ Series calculator

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  1. The "DISP" button us usually on the left side of the calculator. Press and hold it.
  2. This button is usually on the right side or near the top. Make sure you are still holding "DISP" while pressing "Correct".
  3. Pressing and holding both the "DISP" and "Correct" button at the same time will turn off the calculator. [6]
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Community Q&A

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  • Question
    How to turn off my calculator if it is a CT-555N?
    Community Answer
    These calculators have a sensor which detects when it is not used for an amount of time to turn off by itself.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
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    Not Helpful 48 Helpful 54
  • Question
    How do I turn off a W39231 calculator?
    Community Answer
    If the calculator has solar panels, put your finger over them, or place the calculator upside down on a flat surface. It will eventually shut itself down.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
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    Not Helpful 26 Helpful 34
  • Question
    How do I turn off a Casio DJ-120 calculator?
    Community Answer
    Press and hold the "display" button and "correct" button at once. Release the "display" button while still holding the "correct" button, and the calculator will turn off.
    Thanks! We're glad this was helpful.
    Thank you for your feedback.
    If wikiHow has helped you, please consider a small contribution to support us in helping more readers like you. We’re committed to providing the world with free how-to resources, and even $1 helps us in our mission. Support wikiHow
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      References

      1. ↑ https://www.citizen-systems.co.jp/english/support/download/electronic/calculator/instruction/data_scientific/SR270X.pdf
      2. ↑ https://www.usna.edu/MathDept/_files/documents/resources/TI-Nspire_CX_Handheld_GettingStarted_EN.pdf
      3. ↑ https://support.casio.com/global/en/calc/manual/fx-82MS_85MS_220PLUS_300MS_350MS_en/before_using_calculator/getting_started/turning.html
      4. ↑ https://support.casio.com/global/en/calc/manual/fx-82MS_85MS_220PLUS_300MS_350MS_en/before_using_calculator/getting_started/turning.html
      5. ↑ https://support.hp.com/us-en/document/bpia5202
      6. ↑ https://www.youtube.com/watch?v=oAfvRgvdlGY

      About This Article

      Article Summary X

      1. Wait for it to turn off on it's own.
      2. Cover the solar strip.
      3. Press and hold " ON ", " C ", " CE ", or " AC ".
      4. Press " 2nd " followed by " On "
      5. Press " Shift " followed by " AC ".
      6. Press " Shift " followed by " On ".
      7. Press the button combination specified in the user's manual.
      To learn how to turn off a graphing calculator, scroll down!

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