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#abacuslevel2 #abacussmallfriends #abacus5compliments #3digitsadditionsubtraction
This video shows level 2 (Part 4) of the abacus training in which 5's compliments 3 digits addition and subtraction sums are explained. 5 compliments are also called small friends. Both +5 and -5 compliment method operations are shown.
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