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Adding Decimals Practice
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Adding Decimals Practice
🎯 Part 1: Partial Sums Method
I can: Add decimals using partial sums by breaking numbers into parts.
1. Use partial sums to solve: 2.45 + 1.32
2. Use partial sums to solve: 5.67 + 3.28
3. Use partial sums to solve: 4.39 + 2.75
4. A recipe calls for 1.25 cups of flour and 0.75 cups of sugar. How much total dry ingredients is needed? Use partial sums.
📐 Part 2: Traditional Algorithm
I can: Add decimals using the traditional algorithm by lining up decimal points.
5. Use the traditional algorithm to solve: 3.46 + 2.89
6. Use the traditional algorithm to solve: 7.52 + 4.68
7. Sarah ran 2.75 miles on Monday and 3.48 miles on Tuesday. What is the total distance she ran? Use the traditional algorithm.
8. Extension Challenge: Add three decimals using the traditional algorithm: 1.45 + 2.67 + 3.29
🔍 Part 3: Compare and Reflect
9. Which method do you prefer for adding decimals? Explain why in 2-3 sentences.
10. Check your work: Use a different method than you used in question 6 to verify your answer.
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