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What method can be used to check the reasonableness of an addition problem?
  • a)
    Estimation before calculation
  • b)
    Using a calculator
  • c)
    Multiplying the numbers
  • d)
    Subtracting the smallest number from the largest
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
What method can be used to check the reasonableness of an addition pro...
Estimation before calculation is an effective method to verify the reasonableness of an addition problem. By rounding numbers to the nearest ten or hundred, you can quickly check if the final answer is in the expected range, which helps catch errors early in the process.
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