Check All Calculations and Then Reverse-Check Them

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You will probably be told often to double-check your math and science work for accuracy. For additional strategy, after arriving at an answer to a math problem, try re-inserting your answer into the circular equation. If the equation works, then you have the correct answer.

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If not, you may have made a mistake somewhere. Many students skip this "reverse review" method, especially when they are in a rush to buy time. However, this is a key step because reverse checking is actually faster than checking and reworking the problem again when an answer is double checked. So then try "reverse check ° before" check again.