Answer:
52.963
Step-by-step explanation:
Simply evaluate the expression. If you can't do it in your head, you can ask a calculator to do it.
(5×10)+2+9×1/10+6×(1/100)+3×(1/1000) = 50 + 2 + 9/10 + 6/100 + 3/1000
... = 50 + 2 + 0.9 + 0.06 + 0.003
.. = 52.963