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Abacus Tutorial: Discovering the Small Friend Formula | Creative Home Schooling

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Сложение и вычитание с использованием Big Friends на Abacus | InstAbacus

Abacus small friend formula for additon and subtraction || Splendidmoms

Learn Addition using small friend formula (2 friend is 3) on the abacus ||

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Learn Addition & Subtraction Using the Small Friend Formula on the abacus ||

FINGER ABACUS (PART 4)- ABACUS FIRST LEVEL (SMALL FRIEND SUBTRACTION)PARCTICE QUESTION PRACTICE

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Abacus - Small Friend +3 Formula (Addition) | Tamil + English | Have Fun

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ABACUS small friend (Addition Formula)

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Abacus Small Friend Formula (For Addition and Substraction)l Abacus Learning l Ancient Calculator l

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