EXAMPLE: Subtract .07295 from 21.651.
21.651
.07295
--------
21.57805 _Ans._
Write the first number under the second, so that the point comes
under the point. Remember that we may consider there are 0’s above
the 9 and 5, since in 21.651 there are no ten-thousandths and no
hundred-thousandths.
Say, mentally 5 and 5 make 10, carry 1. 10 and 0 make 10, carry 1. 3 and
8 make 11, carry 1, etc.