🧮 Lab Work: Column Addition

Learn place values and master column addition!

How Place Values Work in Addition

📊 Place Values

Each digit in a number has its place - the place value:

2 4 7
hundreds tens ones

➕ Column Addition

In column addition, we add numbers by place values, starting from the right:

Step 1: Add the ones

2 4 7
+ 1 3 5
─────
2 4 12

7 + 5 = 12. Write 2, carry 1 to tens.

Step 2: Add the tens

2 4 7
+ 1 3 5
+ 1 (carry)
─────
2 8 2

4 + 3 + 1 = 8. Write 8.

Step 3: Add the hundreds

2 4 7
+ 1 3 5
─────
3 8 2

2 + 1 = 3. Write 3.

Result: 247 + 135 = 382

🎯 Interactive Demonstration

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🎮 Practice Exercises

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📝 Final Test

Test your knowledge! The test consists of 10 questions.