To efficiently subtract multi-digit numbers:
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Align the Numbers: Write the numbers vertically, aligning them by their place values (units, tens, hundreds, etc.).
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Subtract Right to Left: Start from the rightmost digit and move left, borrowing from the next higher place as needed.
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Borrow Correctly: If the top digit is smaller than the bottom digit, borrow 1 from the next column over, adding 10 to the current digit.
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Write the Result: After subtracting each column, write down the results directly below.
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Double-Check: Review the calculations to ensure accuracy.
Practice helps improve speed and efficiency!