What should be added to 0.2 to get 1.0?
0.8
To find the decimal number that should be added to 0.2 to get 1.0, we have to subtract 0.2 from 1.0
That is, we need to find 1.0−0.2.
/10./010 −0 . 2––––– 0 . 8––––––
Thus, we need to add 0.8 to 0.2 to get 1.0.