A2
Plugging In Numbers
On some test questions, you will have an algebraic expression. The question will also provide a value for each of the unknowns. You can replace each letter with its provided value, then use the calculator to answer the question, just as you did in the CALCULATOR section of this website.
You need the same skill to answer word problems in the next section. Once you have a formula, you answer the solve the problem by plugging numbers from the question into the formula, and then solve.
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Here is a lesson from purplemath that may be useful.
Here is a lesson from purplemath that may be useful.
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