2.1-1=1.1
-1.2
it is .5
1.25 - 0.50 = 0.75 ■
two thirds
One quarter is two eighths, so five eighths subtract two eighths is three eighths.
When you subtract one number from another you get the difference.You just said it; sum.
0.8
two and one half
Subtract two, multiply by two, subtract one. :)
1989
-3/20.
The difference in longitude between two places is:Absolute value of [ (one longitude) minus (the other longitude) ].The easist way to calculate it is as follows:--> If both points are in the same hemisphere(both east longitude or both west longitude):-- Subtract the smaller number from the larger number.--> If the points are in different hemispheres(one east longitude and one west longitude):-- Add the two numbers.-- Subtract the result from 360.