The answer to any math problem depends on upon the question being asked. In most math problems, one needs to determine a missing variable. For instance, if a problem reads as 2+3 = , one needs to figure out what the number after the equals sign should be.
In other cases, one may see a number after the equals sign but a letter or two letters in the middle of the problem. That looks like the following: 2+a=5. In questions like this one, the answer is the number that accurately replaces the letter.
Many math problems are story problems. In order to solve a story problem, one must create an equation based on the information presented in the story, and they must solve for the variable in that equation.