IXL | Subtract two two-digit numbers - with regrouping - up to 40 | 1st grade math

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Subtract.

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Excellent!

Now entering the Challenge Zone—are you ready?

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IXL's SmartScore is a dynamic measure of progress towards mastery, rather than a percentage grade. It tracks your skill level as you tackle progressively more difficult questions. Consistently answer questions correctly to reach excellence (90), or conquer the Challenge Zone to achieve mastery (100)! Learn more

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Not feeling ready yet? These can help:

Subtract two two-digit numbers - without regrouping - up to 40

Subtract a one-digit number from a two-digit number - with regrouping - up to 40