Addition and Subtraction

 

  1.  Master addition and subtraction basic facts
    • Math Magician ADDITION or SUBTRACTION (you must earn 95% or higher to pass)-

VIDEOS ON ADDITION

Khan Academy- regrouping when adding:

(1)  – using a model,

(2) Using two 4-digit numbers (no model used)

Math Antics: How addition works. 

 

 

Subtraction Practice