Posts Tagged ‘9’

Mathtrain.TV, Ep.109, Remembering the Nines

Sunday, April 15th, 2012

6th grader, “Kermit”, shows us 3 interesting ways to remember the 9’s – – multiplication by 9.

She recorded and edited the entire screencast by herself!

Part of the student-created Mathtrain.TV project.
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Mathtrain.TV: Episode 13

Thursday, January 3rd, 2008

Quick Tip: Multiply by 9 (by a 4th Grader).

(originally aired 01/03/08)