The answer depends on the context. One possible answer is cluster analysis.
substaction
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The process of inserting zero-valued samples in between original samples is called "upsampling," In digital signal processing, this process can also be called "zero-stuffing."
is called an inequality
Difference
That is called "factoring".
The process of analyzing a design problem and finding a way to fix it is called troubleshooting. This involves identifying the issue, understanding its root cause, and implementing a solution to resolve it.
Finding the line of best fit is called linear regression.
factoring or factorizing
Testing is the process of finding effort in software code.
ratio
quotient
Multiplication
It is called multiplication.
It is called multiplication.
EDITING
The answer to a subtraction problem is called the difference. It is called this, because when you are subtracting you are finding the difference between one number and another.
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