IXL | Add a one-digit number to a two-digit number | 1st grade math

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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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Teacher tools

Work it out

Not feeling ready yet? These can help:

DD.9Use models to add a two-digit and a one-digit number - with regrouping

DD.6Add a two-digit and a one-digit number - without regrouping