Math & Algebra Tool
Long Multiplication Calculator
Visualize the standard algorithm with partial products.
123
45
615
4920
5535
Step-by-Step Breakdown
- Step 1: 123 × 5 (shifted 0 place) = 615
- Step 2: 123 × 4 (shifted 1 place) = 4920
- Final: Sum of all rows = 5535
Σ The Formula
Product = A × B
Real World Examples
2-Digit Multiplier
123 × 45. Shows separate rows for 123×5 and 123×40.
Standard Algorithm
Learn how to line up numbers and add partial products.
# About This Calculator
Long Multiplication breaks a large multiplication problem into smaller, manageable steps.
You multiply the top number by each digit of the bottom number separately, adding a zero placeholder for each shift in place value. Finally, you add all the rows together.
Frequently Asked Questions
Is Long Multiplication Calculator free to use?+
Yes, Long Multiplication Calculator on Matheric is completely free to use. We believe in accessible education and utility for everyone.
How accurate is Long Multiplication Calculator?+
We use standard mathematical formulas and high-precision computing algorithms to ensure results for Long Multiplication Calculator are accurate for academic and professional use.
Can I use Long Multiplication Calculator on my phone?+
Yes! Long Multiplication 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 Multiplication 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 Multiplication breaks a large multiplication problem into smaller, manageable steps.
You multiply the top number by each digit of the bottom number separately, adding a zero placeholder for each shift in place value. Finally, you add all the rows together.