Multiply by Vedic method -

9.85 x 9.15

Method:

There are two sides of a product.

Left Hand Side = Multiplicand – 1

Right Hand Side = Multiplier – Left Hand Side

So, Multiplicand × Multiplier = Multiplicand – 1/ Multiplier – Left Hand Side

9×(9+1)/.85×.15

=90/.1275

Ans: 90.1275