Math & Algebra Tool
Long Subtraction Calculator
Visualize the standard regrouping (borrowing) method for subtraction.
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9
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14
1
0
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0
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Borrowing Logic
- The slashed numbers show where a value was taken from.
- The small numbers at the top show the new value after borrowing.
- If you borrow from a 10, it effectively becomes a 9, and the 1 carries right.
Σ The Formula
Difference = A - B
Real World Examples
Standard Borrow
1024 - 567 = 457. Shows how 10 becomes 9 to borrow for the ones and tens places.
Zero Borrowing
100 - 1 = 99. Demonstrates borrowing across multiple zeros.
# About This Calculator
Long Subtraction (or Column Subtraction) is the process of subtracting multi-digit numbers by lining them up vertically.
When a digit in the top number (minuend) is smaller than the digit in the bottom number (subtrahend), you must borrow or "regroup" from the next place value on the left.
Frequently Asked Questions
Is Long Subtraction Calculator free to use?+
Yes, Long Subtraction Calculator on Matheric is completely free to use. We believe in accessible education and utility for everyone.
How accurate is Long Subtraction Calculator?+
We use standard mathematical formulas and high-precision computing algorithms to ensure results for Long Subtraction Calculator are accurate for academic and professional use.
Can I use Long Subtraction Calculator on my phone?+
Yes! Long Subtraction Calculator is fully responsive and optimized for all devices, including smartphones, tablets, and desktops.
Do you save my data?+
No. We prioritize your privacy. All calculations are performed in your browser or temporarily processed, and we do not store your personal input data.
How do I report a bug?+
If you notice any issues with Long Subtraction Calculator or have suggestions for improvement, please contact us via the link in the footer. We value your feedback!
Can I request a new feature?+
Absolutely. We are constantly expanding our toolset. Feel free to reach out with your requests, and we might build it next!
About
Long Subtraction (or Column Subtraction) is the process of subtracting multi-digit numbers by lining them up vertically.
When a digit in the top number (minuend) is smaller than the digit in the bottom number (subtrahend), you must borrow or "regroup" from the next place value on the left.