My friend has recently been challenging me to solve some maths problems, the latest challange is to find a method of finding the answer of $2.5 \cdot 2.5$ without ever using multiplication. Now with whole numbers this is easy, you would just use repeated addition. Example: $3 \cdot 3= 3 + 3 + 3$. However this isn't possible with decimal numbers.(As far as I know) Is there a way to do this and the method also working for all other decimal numbers?
2026-04-24 19:15:22.1777058122
Decimal Multiplication Without Multiplication
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