What is subtraction?

Answer 1

Color subtraction is mixing of dyes, inks, paint pigments or colorants to create a wider range of colors. Each color is the result of partially or completely subtracting some wavelengths of color and not others.

Answer 2

Subtraction simply means take away, If you have two numbers, typically you would take the biggest number and take away the smaller on from it. Example:

100

-25

-----

75

The way you can check if you're subtracting is adding. If you take 25+75, you'll get 100. So you know your answer is correct.

Answer 3

In Mathematics, subtraction is the process of taking a matrix, vector, or other quantity away from another under specific rules to obtain the difference.

7 - 4 = 3
Taking a given number from the total amount.