Sub-Sūtra 1 of 13

Ānurūpyeṇa

Proportionately

Multiplication using a working base proportional to a power of 10.

When to use

When numbers are near a multiple of 10 (e.g., near 50 instead of 100).

How it works

Use a working base like 50 = 100/2, perform Nikhilam, then halve/double the left part appropriately.

Memory formula

Use a proportional working base, then scale the left side back.

Worked examples

Problem 1

48 × 49

0/3

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