Examples of 3-digit addition problems for kids

📚 Quick Study Guide

• ➕ What is 3-Digit Addition? 3-digit addition involves adding two numbers where each number has three digits (hundreds, tens, and ones).
• 🔢 Place Value: Remember to align the numbers according to their place value (ones under ones, tens under tens, hundreds under hundreds).
• Carry-Over: If the sum of digits in a column is more than 9, you need to 'carry over' the tens digit to the next column on the left. For example, if you have $17$ in the ones place, you write down $7$ and carry over $1$ to the tens place.
• ✍️ Start from the Right: Always begin adding from the ones column (rightmost column) and move towards the left (tens, hundreds).
• ✅ Verification: After solving, you can check your answer by estimating or using a calculator.

Practice Quiz

1. What is $123 + 456$?
1. 579
2. 589
3. 679
4. 689
2. What is $246 + 321$?
1. 567
2. 577
3. 557
4. 566
3. What is $357 + 132$?
1. 489
2. 479
3. 499
4. 469
4. What is $468 + 211$?
1. 679
2. 689
3. 669
4. 659
5. What is $579 + 120$?
1. 689
2. 699
3. 709
4. 719
6. What is $690 + 209$?
1. 889
2. 899
3. 909
4. 879
7. What is $711 + 188$?
1. 889
2. 899
3. 909
4. 919