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4 Written questions
3 Multiple choice questions
 1,2,3,4,5,6,7,8,9, ect
 For any whole number n, except 0,
 operations that undo
each other
3 True/False questions

Numerical expression → a phrase that uses variables, numbers, and operations.

To evaluate an expression → you replace the variable with a number and then complete the problem

Equation → A letter that stands for one or more numbers