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With this video you will learn: - left-to-right subtraction - subtracting by adding - subtracting in two steps - tearing off equal endings - stepping up & down for ease - sidelining common zeros Part of the "Totally Cool Math" series, an innovative program designed by teachers that teaches mental math and makes learning easier, faster, and fun! 63 minutes • Color -- With this video you will learn: - left-to-right subtraction - subtracting by adding - subtracting in two steps - tearing off equal endings - stepping up & down for ease - sidelining common zeros Part of the "Totally Cool Math" series, an innovative program designed by teachers that teaches mental math and makes learning easier, faster, and fun! 63 minutes • Color
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$19.95