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Find the missing number.
22 + 9 = 11 + ________
  • a)
    20
  • b)
    18
  • c)
    15
  • d)
    17
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
Find the missing number.22 + 9 = 11 + ________a)20b)18c)15d)17Correct ...
Understanding the Equation
To solve the equation 22 + 9 = 11 + ____, we need to find the missing number that makes both sides equal.
Breaking Down the Left Side
- Calculate the left side:
- 22 + 9 = 31
Breaking Down the Right Side
- We currently have:
- 11 + ____
- Let’s denote the missing number as 'x':
- So, we rewrite the right side as:
- 11 + x
Setting Both Sides Equal
- Now we equate both sides:
- 31 = 11 + x
Finding the Missing Number
- To find 'x', we can rearrange the equation:
- x = 31 - 11
- x = 20
Conclusion
- The missing number is 20, which corresponds to option 'A'.
By confirming our calculations, we see that if we replace the blank with 20, both sides of the equation will equal 31, thereby validating that the answer is indeed correct.
This exercise reinforces basic addition and the concept of balancing equations, which are fundamental skills in mathematics for young learners.
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Community Answer
Find the missing number.22 + 9 = 11 + ________a)20b)18c)15d)17Correct ...
22 + 9 = 11 + 20
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Find the missing number.22 + 9 = 11 + ________a)20b)18c)15d)17Correct answer is option 'A'. Can you explain this answer?
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