2-digit subtraction

12

Upload: hkmath

Post on 29-Jun-2015

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HKMath subtracts tens and then ones in this non-traditional approach. She does not advocate this procedure to replace the traditional method. Instead, she suggests that it is often fun to think creatively or think outside the box. Created with Haiku Deck, presentation software that's simple, beautiful and fun. Learn more and get Haiku Deck: www.haikudeck.com