3-Digit Addition Practice
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3-Digit Addition Practice
📝 Part 1: Addition Without Carrying (Questions 1-10)
Instructions: Follow the steps below to solve each addition problem using the column method. Show your working.
Step 1: Write the numbers in a column, aligning the digits by place value.
Step 2: Add the digits in the ones place (4 + 2 = 6).
Step 3: Add the digits in the tens place (3 + 5 = 8).
Step 4: Add the digits in the hundreds place (2 + 1 = 3).
Final Answer: 386
Step 1: Write the numbers in a column.
Step 2: Add the ones place (3 + 5 = 8).
Step 3: Add the tens place (1 + 2 = 3).
Step 4: Add the hundreds place (4 + 1 = 5).
Final Answer: 538
Step 1: Write the numbers in a column.
Step 2: Add the ones place (1 + 7 = 8).
Step 3: Add the tens place (2 + 4 = 6).
Step 4: Add the hundreds place (5 + 3 = 8).
Final Answer: 868
Step 1: Write the numbers in a column.
Step 2: Add the ones place (2 + 6 = 8).
Step 3: Add the tens place (0 + 9 = 9).
Step 4: Add the hundreds place (3 + 1 = 4).
Final Answer: 498
Step 1: Write the numbers in a column.
Step 2: Add the ones place (0 + 9 = 9).
Step 3: Add the tens place (4 + 2 = 6).
Step 4: Add the hundreds place (6 + 1 = 7).
Final Answer: 769
Step 1: Write the numbers in a column.
Step 2: Add the ones place (5 + 3 = 8).
Step 3: Add the tens place (5 + 3 = 8).
Step 4: Add the hundreds place (1 + 2 = 3).
Final Answer: 388
Step 1: Write the numbers in a column.
Step 2: Add the ones place (1 + 8 = 9).
Step 3: Add the tens place (7 + 0 = 7).
Step 4: Add the hundreds place (4 + 2 = 6).
Final Answer: 679
Step 1: Write the numbers in a column.
Step 2: Add the ones place (6 + 2 = 8).
Step 3: Add the tens place (2 + 4 = 6).
Step 4: Add the hundreds place (3 + 1 = 4).
Final Answer: 468
Step 1: Write the numbers in a column.
Step 2: Add the ones place (3 + 5 = 8).
Step 3: Add the tens place (0 + 8 = 8).
Step 4: Add the hundreds place (5 + 2 = 7).
Final Answer: 788
Step 1: Write the numbers in a column.
Step 2: Add the ones place (2 + 6 = 8).
Step 3: Add the tens place (1 + 7 = 8).
Step 4: Add the hundreds place (6 + 1 = 7).
Final Answer: 788
🔢 Part 2: Addition With Carrying (Questions 11-20)
Instructions: Follow the steps below to solve each addition problem using the column method. Remember to carry when needed!
Step 1: Write the numbers in a column.
Step 2: Add the ones place (7 + 5 = 12). Write down 2 and carry over 1.
Step 3: Add the tens place (6 + 8 + 1 = 15). Write down 5 and carry over 1.
Step 4: Add the hundreds place (2 + 1 + 1 = 4).
Final Answer: 452
Step 1: Write the numbers in a column.
Step 2: Add the ones place (9 + 8 = 17). Write down 7 and carry over 1.
Step 3: Add the tens place (4 + 7 + 1 = 12). Write down 2 and carry over 1.
Step 4: Add the hundreds place (3 + 2 + 1 = 6).
Final Answer: 627
Step 1: Write the numbers in a column.
Step 2: Add the ones place (6 + 7 = 13). Write down 3 and carry over 1.
Step 3: Add the tens place (5 + 6 + 1 = 12). Write down 2 and carry over 1.
Step 4: Add the hundreds place (4 + 3 + 1 = 8).
Final Answer: 823
Step 1: Write the numbers in a column.
Step 2: Add the ones place (9 + 6 = 15). Write down 5 and carry over 1.
Step 3: Add the tens place (8 + 4 + 1 = 13). Write down 3 and carry over 1.
Step 4: Add the hundreds place (5 + 2 + 1 = 8).
Final Answer: 835
Step 1: Write the numbers in a column.
Step 2: Add the ones place (8 + 4 = 12). Write down 2 and carry over 1.
Step 3: Add the tens place (3 + 9 + 1 = 13). Write down 3 and carry over 1.
Step 4: Add the hundreds place (7 + 1 + 1 = 9).
Final Answer: 932
Step 1: Write the numbers in a column.
Step 2: Add the ones place (5 + 8 = 13). Write down 3 and carry over 1.
Step 3: Add the tens place (9 + 5 + 1 = 15). Write down 5 and carry over 1.
Step 4: Add the hundreds place (2 + 4 + 1 = 7).
Final Answer: 753
Step 1: Write the numbers in a column.
Step 2: Add the ones place (3 + 9 = 12). Write down 2 and carry over 1.
Step 3: Add the tens place (7 + 8 + 1 = 16). Write down 6 and carry over 1.
Step 4: Add the hundreds place (6 + 2 + 1 = 9).
Final Answer: 962
Step 1: Write the numbers in a column.
Step 2: Add the ones place (7 + 6 = 13). Write down 3 and carry over 1.
Step 3: Add the tens place (8 + 4 + 1 = 13). Write down 3 and carry over 1.
Step 4: Add the hundreds place (3 + 5 + 1 = 9).
Final Answer: 933
Step 1: Write the numbers in a column.
Step 2: Add the ones place (8 + 5 = 13). Write down 3 and carry over 1.
Step 3: Add the tens place (9 + 7 + 1 = 17). Write down 7 and carry over 1.
Step 4: Add the hundreds place (4 + 3 + 1 = 8).
Final Answer: 873
Step 1: Write the numbers in a column.
Step 2: Add the ones place (9 + 7 = 16). Write down 6 and carry over 1.
Step 3: Add the tens place (5 + 8 + 1 = 14). Write down 4 and carry over 1.
Step 4: Add the hundreds place (6 + 2 + 1 = 9).
Final Answer: 946
✅ Answer Key
Part 1 Answers (No Carrying):
1. 386 2. 538 3. 868 4. 498 5. 769
6. 388 7. 679 8. 468 9. 788 10. 788
Part 2 Answers (With Carrying):
11. 452 12. 627 13. 823 14. 835 15. 932
16. 753 17. 962 18. 933 19. 873 20. 946
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