A video explaining addition of a two-digit number and a one-digit number using the addition algorithm, objects and number lines. Practice problems are available. [9:47]

Concepts

addition, addition with regrouping

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Additional Tags

adding whole numbers, addition of two-digit and one-digit numbers, addition on a number line, addition with carrying, khan academy, khan academy math, khan academy: arithmetic and pre-algebra: level 2 addition

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Classroom Considerations

• This video is hosted on YouTube

Common Core

K.OA.A.2 1.NBT.C.4 K.OA.A.4 K.OA.A.3