Sunday, February 7, 2016

Abacus Lesson 13: Simple Subtraction (0-5 only) 10's column

44 - 22 (44 take away 22)
34 - 10 (34 minus 10)
22 - 12 (22 subtract 12)
44 - 13 (44 take away 13)


Now do the worksheet


Video: Abacus Lesson 13: Simple Subtraction (0-5 only) 10's column



Acknowledgement: Credit John of HEV Project. This post is a summary of HEV Abacus Lessons

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