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    Video Flash Cards: Subtraction by 9

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    The Video Math Tutor

    by The Video Math Tutor

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    Sample video using video flash cards to help students learn their Subtraction Tables. Visit my website to purchase the complete set of videos so that videos can be played randomly, instead of in order. These work great on computer, tablet, smartphone or portable video player (iPod). Proceeds help me create even more math videos!