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# Addition and subtraction

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Practice

Break apart 3-digit addition problemsGet 3 of 4 questions to level up!

Add using groups of 10 and 100Get 3 of 4 questions to level up!

Add on a number lineGet 3 of 4 questions to level up!

Estimate to add multi-digit whole numbersGet 3 of 4 questions to level up!

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Practice

Subtract within 1000Get 3 of 4 questions to level up!

Practice

Find the missing number (add and subtract within 1000)Get 3 of 4 questions to level up!