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Abacus Lesson- 7 ||Big friend formula for addition|| dimpal dimpu (Dimpal Dimpu) View |
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Abacus Lesson- 8 ||Big friend formula for subtraction|| dimpal dimpu (Dimpal Dimpu) View |
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Abacus Lesson - 9 ||Big friend addition and subtraction|| dimpal dimpu (Dimpal Dimpu) View |
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Abacus Lesson- 4|| small friend formula for addition || dimpal dimpu (Dimpal Dimpu) View |
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Addition and Subtraction using Big Friends on Abacus | InstAbacus (InstAbacus) View |
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Abacus Lesson- 5 ||small friend formula for subtraction|| (Dimpal Dimpu) View |
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English || Abacus classes || level 1:- (+9=+10-1). Big friend concept || (Abacus learner by Sudha) View |
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How to do +9 or +90 in Abacus/ Big Friend Formula in Abacus / +9 Formula and +90 Formula. #abacus (PRAMA ACADEMY) View |
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#9 Abacus Addition – General Rules (ICEVI Math Made Easy) View |
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Abacus Lesson - 11 ||Combination Formula for Subtraction|| dimpal dimpu (Dimpal Dimpu) View |