Instructional Video
Khan Academy

Khan Academy: Multi Digit Subtraction: 389,002 76,151

4th Standards
Subtract 389,002-76,151 using the standard algorithm.
Instructional Video
PBS

Pbs: Odd Squad: To Catch a Double

K - 1st Standards
Learn about doubling numbers with the Odd Squad. While babysitting the doubled Debbies, Otto discovers something that might help Olive crack the case and find the missing double.
Instructional Video
PBS

Pbs: Odd Squad: How to Feed the Hamster

K - 1st Standards
Oscar needs to calculate the value of an unknown number in a subtraction formula in order to feed the Odd Squad hamster.
Instructional Video
Khan Academy

Khan Academy: Subtracting Fractions With Like Denominators

5th
Sal Khan subtracts fractions with like denominators.
Instructional Video
Khan Academy

Khan Academy: Add and Subtract: Pieces of Fruit

K - 1st Standards
Demonstrates how to add and subtract pieces of fruit using the numbers 5 and 3. [2:17]