Groupings to 1000

I enjoy using the strategy
 to work out how many more to 1000 because I like doing things that I understand.

when i first learnt this I
 thought it was going to be hard but its just like groupings to 100 but it got tricky when I did the last one because it was a take away.


I need to practise doing
the take away ones and slow down to make sure I have the right answer