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What is the missing number in the equation 30 − _ = 27?
  • a)
    57
  • b)
    27
  • c)
    30
  • d)
    3
Correct answer is option 'D'. Can you explain this answer?
Most Upvoted Answer
What is the missing number in the equation 30 − _ = 27?a)57b)27c...
To find the missing number in the equation 30 − _ = 27, rewrite it as a subtraction problem: 30 − 27 = _. This gives 3, so the missing number is 3. Alternatively, using a number line, count from 27 to 30, which requires adding 3. This demonstrates the inverse relationship between addition and subtraction.
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