Decimal Addition and Subtraction
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Decimal Addition and Subtraction
🎯 Part 1: Estimating and Models
I can estimate sums and differences of decimals to the hundredths.
My estimate: _____ + _____ = _____
My estimate: _____ - _____ = _____
✏️ Part 2: Partial Sum and Difference Strategies
I can use partial sum and partial difference strategies to add and subtract decimals.
4.67 = _____ + _____ + _____
3.25 = _____ + _____ + _____
Add the parts: _____ + _____ + _____ = _____
7.84 - 2.00 = _____
_____ - 0.30 = _____
_____ - 0.07 = _____
🔢 Part 3: Traditional Algorithm
I can use the traditional method to add and subtract decimals to the hundredths.
15.73
+ 8.49
_______
12.05
- 7.38
_______
Show your work using any strategy:
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