Sunday, February 7, 2016

Abacus Lesson 15: Simple Subraction (0-10) 1's column

9 - 5 (9 take away 5)
8 - 5 (8 minus 5)
7 - 5 (7 subtract 5)

8 - 2 (8 take away 2)
6 - 1 (6 minus 1)

Video: Abacus Lesson 15: Simple Subraction (0-10) 1's column

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