Step-by-Step Examples: 3-Digit Subtraction Using Standard Algorithm (No Regrouping)

📚 Quick Study Guide

• 🔢 Standard Algorithm: The standard algorithm is a step-by-step method for solving subtraction problems.
• ➖ No Regrouping: In these problems, each digit in the top number (minuend) is greater than or equal to the digit in the bottom number (subtrahend) in the same place value. So, you don't need to borrow.
• 📍 Place Value: Always start subtracting from the rightmost column (ones place), then move to the tens place, and finally the hundreds place.
• ✅ Checking Your Work: You can check your answer by adding the difference (result of subtraction) to the subtrahend. The sum should equal the minuend.

📝 Practice Quiz

1. What is 578 - 231?
1. 247
2. 347
3. 709
4. 809
2. Calculate: 963 - 420
1. 543
2. 1383
3. 540
4. 443
3. Solve: 789 - 352
1. 437
2. 1141
3. 427
4. 337
4. Find the difference between 654 and 123.
1. 531
2. 777
3. 521
4. 767
5. What is 897 - 546?
1. 351
2. 1443
3. 341
4. 251
6. Subtract 215 from 438.
1. 223
2. 653
3. 643
4. 213
7. Evaluate: 369 - 149
1. 220
2. 518
3. 210
4. 500