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2)Then count the number of digits after decimal in 1st no and then of the 2nd no

3) now place the decimal in the product counting from right to left total no.of digits that you counted after decimal in both the numbers

For example

1.2 ×1.2

1) 12×12 = 144

2)total no.of no`s after decimal altogether from both no`s = 2

3)∴place decimal counting from right to left 1.44 (after two digits from left)