When you see ‘9e10’ on a calculator, it is a representation of a number in scientific notation. The ‘e’ stands for ‘exponent’ and represents ‘times ten raised to’. So, ‘9e10’ is essentially the same as saying ‘9 times 10 to the power of 10.’
This means you take the number 9 and multiply it by 10 raised to the 10th power. The value of 10 to the power of 10 is 10,000,000,000 (or ten billion). Therefore, the full calculation would be:
9e10 = 9 × 1010 = 9 × 10,000,000,000 = 90,000,000,000
So, in simple terms, ‘9e10’ represents 90 billion. Scientific notation is often used in calculators to make it easier to handle very large or very small numbers without writing out all the zeros.