Adding Whole Numbers and Applications 1

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 6 ones + 3 ones, and 4+4 is 4 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 really reinforces the concept.

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Resource Details

Grade
3rd - 5th
Subjects
Math
2 more...
Resource Types
Videos
1 more...
Instructional Strategy
Flipped Classroom
Usage Permissions
Creative Commons
BY-NC-SA: 3.0
cc