Groupings to 1000

I think I'm doing well in maths because their are now 2 people around to help me, so that now means I can get my work done faster and I am not wondering around in the creative cave.
I think I still need to work on questions like:1000-429=
I think I am getting really good at multiplication because I know 1, 2, 3, 9, 11, 7 time tables and last year I didn't know how to do time tables at all.