Question about Sentry CA656 Calculator

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I have the Sentry CA656, and I cannot find the fraction mode. It must be there somewhere right ?

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  • Anonymous Feb 16, 2009

    Sentry CA656 fraction button



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Actually, no. The CA 656 doesn't have a fraction mode.

Posted on Aug 18, 2010


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If I understand correctly, you want to type this :

If so, then your formula must look like :


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Is there a manual one can download for CA656?

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I have a CA656 model calculator. First, how cann I get it to show teh full answer to my math problems in decimal form. It is rounding to a whole number. Next, how can I calculate sin 30? What steps...

  1. Press MODE 9 to shift into Normal display mode, or MODE 7 and enter the number of digits you want to see.
  2. sin 30 EXE. Be aware that the result depends on the angular mode. Most math problems are specified in radians, while your example sounds like it's in degrees. To select degrees, press MODE 4. To select radians, press MODE 5.
  3. 30 * sin 30 EXE. Everything in #2 above applies.

Aug 14, 2010 | Sentry Office Equipment & Supplies

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How do you change a decimal to a fraction on the Sentry CA756?

In general you cannot convert a decimal value to a fraction. However, if the number started out as a fraction, press the [a b/c] key to convert it back to a fraction.

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Is there a combination button on this calculator?

Sorry, answer was posted as a clarification request. Read below

Oct 05, 2009 | Sentry CA656 Calculator

1 Answer

Won't work

I bought a new product and I will never purchase this brabnd again.

Sep 13, 2008 | Sentry CA656 Calculator

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