As in part 9, drop a number from each side as such:
0246 - 1357 = -1111
Again drop a number like so:
024 - 135 = -111
And again such as:
02 - 13 = -11
Finally
the equation:
0 - 1 = -1
That's all folks! ............Or is it?
Hope you enjoyed this series! All equations were created and solved by me. However, I am sure I am not the only person to figure most of these out. ---If I discover any more of these, I will post my findings.