Example: Adding Two Digit Numbers (No Carrying)

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This Example: Adding Two Digit Numbers (No Carrying) instructional video also includes:

Adding double-digit numbers can seem difficult for some students. But this Khan Academy video makes this process clear in a developmentally sound way. Students watch as 'Sal' adds the number 46 to 43. He references each number by its place value; so 6 + 3 is six ones + 3 ones, and 4 + 4 is four tens + 4 tens or 40 + 40. The concept of place value is key in understanding re-grouping and double-digit multiplication. Seeing place value in a math application reinforces the concept.

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Concepts

addition whole numbers, addition, expanded notation, math applications, real-world applications

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Additional Tags

adding whole numbers, developmental math, expanded form, math applications, math

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Resource Details

Grade

3rd - 5th

Subjects

Math