A subtraction problem is an arithmetic operation with three parts: the minuend, the subtrahend, and the difference. The minuend is what you start with, the subtrahend is what you take away from the minuend, and the difference is the result you end up with.

If you know any two of the three parts, you can find the missing part. We have created three different calculators below. The first one calculates the difference, the second one calculates the minuend, and the third one calculates the subtrahend.

Do you want to know how our three subtraction calculators work? Check out these explanations:

**How to calculate the difference**

This is the most common subtraction operation that you are most likely to use. Here we simply subtract the subtrahend from the minuend:

minuend - subtrahend = difference

**How to calculate the minuend**

Here we know the difference and what we are subtracting, but not what we started with. To find the minuend, we add the difference and the subtrahend together:

minuend = difference + subtrahend

**How to calculate the subtrahend**

We saved the most difficult one for last. In this scenario, we know what was subtracted (minuend) and the result (difference), but not the starting amount. To find the subtrahend, we subtract the minuend from the difference and then multiply the result by negative 1:

subtrahend = (difference - minuend) × (-1)

There you have it! We hope you find our subtraction calculators and explanations helpful.

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