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grade:
3
subject:
Mathematics
topic:
Using Estimation to Check Addition Answers
character:
Calculator Cat
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grade:
3
subject:
Mathematics
topic:
Basic Addition and Estimation Strategies
character:
Math Mouse
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grade:
3
subject:
Mathematics
topic:
Introduction to Estimation for Addition and Subtraction
character:
Estimation Eagle
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grade:
3
subject:
Mathematics
topic:
Techniques for Verifying Addition with Estimation
character:
Number Ninja
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