It seems you're asking about two examples of scientific notation.
It's always of the form m * 10a, where m is real number and a is integer.
It's quite easy to convert that form to traditional notation - just write down the m number and move the decimal point a spaces left when a is bigger than 0 or right, when a is negative(adding zeros when necessary at the empty positions).
Examples:
2.4 * 102 = 240.0 (notice decimal point moved two spaces right)
4.0 * 10-10 = 0.0000000004(notice decimal point moved 10 spaces to the left).
5.3 times ten to the negative first power is 0.53
the answer is negative thirty (-30)
5.767x10^-2 the answer would be 0.05767.
negative 2,000. =
-50
To calculate six times ten to the negative power, multiply 6 by the value of ten raised to the negative power. For example, if the power is -3, it would be 6 times 10 to the negative third power, which equals 0.006.
10-2 = 0.01
-4 multiplied by -10 is 40.
Five times ten to the third power is 5000 and three times ten to the second power is 300; 5000 + 300 = 5300.
It is 140.
.5 times 10 to the negative 9
Four times 10 -8 times two point four times 10^3 divided by three times 10 -7 is equal to -63,967