The answer depends on that the problem is!
Divide
Solve the problem using the + sign for the variable. Then solve the problem using the - sign for the variable. Report your answer as the answer that you got using + or the answer that you got using -.
First tell me a problem and might understand
There are many different problems and different ways for solving them.
You cannot solve probability since it is not a question! It is like asking how you can solve history!
When you construct and use a table to solve a problem, you are using a numerical approach.
You can draw a flowchart of solving a particular problem and then write a program to solve that problem.
Using your hands
I'm sorry, but I don't have access to specific textbooks or their content, including the "punchline problem solving" on page 136 of a probability book. However, if you provide the details of the problem, I would be happy to help you solve it or explain the related concepts!
you divide by using tens, hundreds, and thousands
example of a problem using the principle of/theroem to solve it
5 + 1 + 15