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Scientific Notation
Scientific notation is the expression of a number based on the largest exponent of 10 for its value, where the form is a decimal number A x 10n.
6,389 Questions
You cannot use the number of decimal places in the scientific notation unless both numbers have the same power of ten.
If the power of ten are different then you can use the number of decimal places in the actual number but that can sometimes be rather cumbersome: when a lot of zeros are involved. A better way is to alter one of the numbers so that both have the same power.
For example, to add 5.432*10^3 and 6.789*10^1 convert one of the numbers so that it has the same power as the other. Now both numbers have the same power. Add the mantissae of the two numbers and append the same exponent. You may have to adjust the answer to get back to scientific notation.
Thus, 5.432*10^3 + 6.789*10^1 = 543.2*10^1 + 6.789*10^1
= (543.2 + 6.789)*10^1
= 549.989*10^1
= 5.49989*10^3
or
5.432*10^3 + 6.789*10^1 = 5.432*10^3 + 0.06789*10^3
= (5.432 + 0.06789)*10^3
= 5.49989*10^3
Can 40 million million be converted?
Yes it can be converted into scientific notation thus using less digits but retaining its original value
What is the scientific notation of Saturn in mass?
Saturn's mass in kilograms is expressed as: 5.686 x 10^26 kg
