MathTacular3 Addition and Subtraction Equations

[1LACLIPPERSFAN]

funny and stupid

[GrannySkippy]

This is a good presentation. However, the video with the balance is confusing, because the balance is dark so you can't see the things (blocks?) being added very well, but you can still see the white squares in the background. It would be more helpful if the balance machine were further onto the white tablecloth and the green and white blocks in the background were covered. Thanks for posting this.

[GDX03]

This made me feel stupid -.-

[paige7596]

nice tie LOL