Partitioning Decimal Addition
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Partitioning Decimal Addition
🔢 Part 1: Breaking Down Decimals
Example: 3.4 = 3 + 0.4
a) 2.6 = _____ + _____
b) 5.23 = _____ + _____
c) 7.8 = _____ + _____
d) 4.56 = _____ + _____
e) 9.07 = _____ + _____
➕ Part 2: Adding Using Partitioning
Problem: 4.6 + 2.25
Step 1: Partition the numbers
4.6 = _____ + _____
2.25 = _____ + _____
Step 2: Add the whole numbers: _____ + _____ = _____
Step 3: Add the decimal parts: _____ + _____ = _____
Step 4: Add the results together: _____ + _____ = _____
a) 3.7 + 2.1 = _____
b) 5.4 + 1.35 = _____
💰 Part 3: Real-Life Problems
Total cost: $ _____
Total distance: _____ kilometres
Total dry ingredients: _____ cups
🎯 Part 4: Estimation and Checking
a) 4.6 + 3.8
My estimate: Greater than 10 / Less than 10 (circle one)
Actual answer: _____
b) 2.7 + 5.9
My estimate: Greater than 10 / Less than 10 (circle one)
Actual answer: _____
🤔 Part 5: Reflection
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