9 key is not moving objects up instead it is extremely zooming out

For me it only works when I use ctrl+9. I play on sims 3 camera style.

My camera jumps when I try to scale objects up or down. But in my case it is caused by my keyboard, in my country keyboards are slightly different from the standard US keyboard. Changing keyboard settings solved this issue for me, but also scrambles a few letters so I only change it while I am building.