What is #1.2 * 0.6#?

1 Answer
Apr 9, 2016

#0.72#

Explanation:

The number #1.2# has only one digit which is #2#. The same is for #0.6# - the only one digit is #6#.

Let me multiply each of them by ten:

#1.2 * 10=12#

#0.6 * 10=6#

When we have converted them to the non-digital numbers we can multiply them easily:

#12 * 6=72#

Now, we should come to the start: we had #1.2# and #0.6# which we each multiplied by #10#. Since both of them were multiplied by ten, now the result should be divided by #100# in order to obtain a correct number of digits.

#72/100=0.72#

So:

#1.2 * 0.6 = 0.72#