Видео с ютуба Big Friend Formula

Abacus Tutorials | Lesson - Formula In Big Friend | Abacus Classes

Learn Big Friend Addition Formula (+9 = +10 - 1)🤩|When & how to use (+9 = +10 - 1)🥰|Level 1 abacus 👆

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Abacus: Big Friend Formula (Addition/Subtraction)

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Сложение и вычитание с использованием Big Friends на Abacus | InstAbacus

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Big Friend Formula Abacus in Hindi ||Addition and Substraction ||Abacus ||Level 1 ||Fast Calculation

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Master the Abacus Techniques: Big Friend Formula Introduction

Big Friends Subtraction in Abacus//Abacus lesson -10

Learn Big Friend Friend Formula ( +8 = +10 - 2 )👍|When & how to use ( +8 = +10 - 2 )|Level 1 abacus👆

Big Friend Formula +6

Abacus tutorial for kids in Hindi || Big Friend Formula Abacus in Hindi ||Addition and Substraction