# How to Subtract 20% on a Calculator?

Learning to do basic math in your head is useful, but there are times when you need to make sure you are calculating the problem exactly. Calculators have now become more convenient as they are ava... Read More »
http://www.ehow.com/how_8359404_subtract-20-calculator.html

Top Q&A For: How to Subtract 20% on a Calculator

You are in Scientific Mode, change it to regular mode. Use the mode key to change mode.Try also this sequence, or check your user manualshift clr 2 mode =

## How to Subtract?

Subtraction is a simple mathematical operation that determines the difference between two numbers. Subtract smaller numbers mentally or use a pen and paper or electronic device for more complicated... Read More »
http://www.ehow.com/how_8268249_subtract.html

## How to Add and Subtract Negatives?

Once you've mastered adding and subtracting integers, the next logical step is learning to perform the same operations on negative numbers. There's only 1 right answer for each combination of negat... Read More »

## How to Add or Subtract Vectors?

Three forces, typical examples of vectorsVectors are physical quantities that consist of a magnitude as well as a direction, for example velocity, acceleration, and displacement, as opposed to scal... Read More »

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