3-Digit by 3-Digit Multiplication
Multiply 3-digit numbers by 3-digit numbers using the standard algorithm
What You'll Learn
- Multiply 3-digit numbers by 3-digit numbers
- Add three partial products accurately
- Estimate to verify reasonableness
📖Three Partial Products
When multiplying by a 3-digit number, you create three partial products - one for each digit. Multiply by the ones, tens (shift one place), and hundreds (shift two places), then add all three.
💡
Use placeholders (zeros) to keep track of place value shifts, or use the standard algorithm carefully.