🎯 Learning Goals

I can statements for today:

• I can add multi-digit decimal numbers by aligning decimal points correctly.

• I can subtract multi-digit decimal numbers by aligning decimal points correctly.

• I can explain why decimal place value matters during these operations.

📝 Part 1: Decimal Addition

Remember: Line up the decimal points first, then add like whole numbers!

1. 12.36 + 4.7 = _______

2. 8.425 + 15.68 = _______

3. 23.9 + 7.456 = _______

4. Sarah bought items costing $14.75, $8.40, and $12.95. What is the total cost?

Remember: Line up the decimal points first, then subtract like whole numbers!

5. 25.84 - 12.5 = _______

6. 30.706 - 18.29 = _______

7. 45.2 - 16.847 = _______

8. A rope was 18.75 feet long. After cutting off 6.8 feet, how much rope is left?

9. Why is it important to line up decimal points when adding or subtracting decimals?

10. Circle the problem that shows correct decimal alignment:

12.5 + 3.46 lined up as: 12.5

+ 3.46

12.5 + 3.46 lined up as: 12.5

+ 3.46