ten to the fifth e to the fifth negative 2 seventy three point one five

"^" means "raised to the power" in mathematics, so 10^5 means 10 raised to the 5th power, or 10*10*10*10*10 'e' in mathematics represents the constant 2.718 (approx) which occurs a lot in nature. It is called Euler's constant. So, e^5 = e raised to the 5th power, or 2.718*2.718*2.718*2.718*2.718 -273.15 = negative (or minus) 273.15. This is minus 273 and 15/hundredths. If it were -273.90, you would say it was minus 273 and 9/tenths (or 90 hundredths).

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