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Addition and subtraction within 100

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Adding 1s or 10s
Subtracting 1s and 10s
Addition with 2-digit numbers
Subtraction with 2-digit numbers
Strategies for adding and subtracting within 100
Addition within 100
Subtraction within 100
Word problems within 100
Word problems with more and fewer (within 100)
Addition and subtraction missing value problems

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