40 Uh, what? I hate to break it to you but 50 + 8 = 58. The original number increased by eight to get 50 would be 42. Eight tenths of 50 is 40 though. Maybe first person was just plain confused?
Eight hundred fifty
58 - fifty eight.
It is fifty eight and nineteen hundredths.
Fifty-eight.
Fifty eight thousand in figures is 58000.
Fifty-eight hundredths.
fifty eight thousand fifty
fifty-seven and twenty-eight thousandths
58,001 fifty eight thousand and one
Eight hundred fifty-one thousandths
352.8 = three hundred fifty-two and eight tenths.
Eight point fifty two or eight and fifty two hundredths.