Moving and trying to repeat a scaled object (inside a group) in Layout

I am moving a scaled object in layout 24" and repeating it 10 times. In Sketchup it works, but in Layout I get an invalid string error. I typed 24" and the line was moved 24". When add 10x afterward–invalid string. If I type 24"x10, invalid string.

I am sure this is obvious… What am I missing?

24”
Enter
x10
Enter

??

Thank you! I had the syntax backwards

Same steps as in SketchUp.