Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Basic Subtraction
This video covers a short review of addition, followed by basic subtraction concepts. Practice problems are available. [8:32]
Khan Academy
Khan Academy: Arithmetic and Pre Algebra: Subtraction 2
This video provides an overview of subtraction. Practice problems are available. [12:32]
PBS
Pbs: Odd Squad: Two Quarts of Blob: Pbs Kids Lab
This video will help children with measuring liquids in quarts and gallons. When both pairs of agents--Olive and Otto versus Oren and Olaf--capture pieces of the Blob, they visit the Mathroom to see who has more.
Math TV
Math Tv
Helpful math video tutorials covering topics related to whole numbers including addition, division, estimation, expanded form, exponents, multiplication, order of operations, subtraction, rounding, and more. Choose a teacher and watch...
PBS
Pbs: Odd Squad: Combining Gadgets
Use this fun example to compose 10 from numbers within 10. Agent Oscar shows agents how to combine gadgets to form the gadget they need.
PBS
Pbs: Odd Squad: Game Time!
Olive and Otto need to add multiple small numbers together in series. There's only one thing to do: go to the Mathroom.
PBS
Pbs: Odd Squad: Why Are Shapes Disappearing?
Olive and Otto use counters to figure out how many objects are being taken away in a visit to the Mathroom.