Subtraction
Place the decimal points under each other, and subtract as in integers.
Examples:
(1) Required the difference between .0075 and .000098
.0078 |
.000098 |
.007702 |
(2) Required the difference between .2879 and 36
36. |
.2879 |
35.7121 |
Note that Macdonald never deals with negative numbers. He always subtracts the smaller number from the greater number.
(3) Subtract .784163 from 1.0006
1.0006 |
.784163 |
.216437 |