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What is the purpose of estimation in addition and subtraction calculations?
  • a)
    To simplify calculations by predicting approximate results
  • b)
    To eliminate the need for regrouping
  • c)
    To make calculations more complex
  • d)
    To find the exact answer without any rounding
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What is the purpose of estimation in addition and subtraction calculat...
Estimation in addition and subtraction is used to simplify calculations by predicting approximate results. For example, rounding numbers helps to quickly gauge whether the final answer is reasonable, which can be especially useful in mental math scenarios. It allows people to quickly assess the magnitude of the result without computing the exact figures, which can be helpful for checking the reasonableness of more detailed calculations.
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