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In this video, we explain the +4 formula in abacus, also known as the +5 - 1 formula, which helps children perform addition quickly and efficiently. This method is used when direct addition is not possible, making calculations easier and more structured.
You will learn how to apply the plus four formula in abacus step by step with simple examples. This technique breaks numbers into smaller parts, helping kids understand the logic behind calculations and apply it confidently.
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