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Estimation can be used to find approximations when exact answers aren’t necessary. You will learn and practice some estimation methods that can be used to ...

We substitute given numbers for each variable and perform the necessary calculations in the proper order

If the base of an exponential expression is a fraction, the exponent tells us how many times to write that fraction as a factor

To evaluate a formula, we replace its letters, called variables, with specific numbers and evaluate the right side using the order of operations rule.