Addition and Subtraction of Numbers With Decimals

The procedure required for addition and subtraction of numbers with decimals is similar to those described above. The decimal point (dots 4-6) must be positioned correctly in the problem, following the conventions established in printed mathematics. No other variances from the above procedures are required.

#3.  16.4
     23.9
 
     40.3
 
ans. = 40.3

An example of subtraction of numbers with decimals follows.

#4.  3.42
     1.79
 
     1.63
 
ans. = 1.63