First ensure that the exponents (the powers of the multipliers of the tens) are the same - if necessary adjust the smaller number by shifting the decimal point left until the powers are the same; for example if the exponents are ``x 105'' and ``x 103'' shift the decimal point of the second number 5 - 3 = 2 places to the left and then the numbers will have the same exponents.
Now, align the decimal points and subtract the mantissae (the numbers before the ``x 10'' s) as usual.
Finally, adjust the result to correct into standard form if necessary by shifting the decimal point.
Examples:
2.3 x 107 - 2.275 x 106 = 2.3 x 107 - 0.2275 x 107
= (2.3 - 0.2275) x 107
= 2.0725 x 107
2.3 x 107 - 2.275 x 107 = (2.3 - 2.275) x 107
= 0.025 x 107
= 2.5 x 105
you take the last digit in the first one and add/subtract it to the last digit in the second one and that is your answer
0.000729512 in scientific notation written to 3 significant places is 7.30x10-4.
20,000 + 3,400,000
1,002,000,000 in Scientific Notation = 1.002 x 109
I don't know what you mean "how to write the rules." In the US, "standard" notation means "long form", i.e. 6,000,000, while "scientific" notation means the exponential form, 6x106. I had thought it was the same in the UK, but Mehtamatics says otherwise: "Standard notation and scientific notation are the same in terms of UK usage of these phrases."
you take the last digit in the first one and add/subtract it to the last digit in the second one and that is your answer
0.000729512 in scientific notation written to 3 significant places is 7.30x10-4.
20,000 + 3,400,000
The answer is 6*10^5 g.
If done correctly, the coefficient of the scientific notation has the same number of significant figures as the whole number.
If done correctly, the coefficient of the scientific notation has the same number of significant figures as the whole number.
1,002,000,000 in Scientific Notation = 1.002 x 109
I don't know what you mean "how to write the rules." In the US, "standard" notation means "long form", i.e. 6,000,000, while "scientific" notation means the exponential form, 6x106. I had thought it was the same in the UK, but Mehtamatics says otherwise: "Standard notation and scientific notation are the same in terms of UK usage of these phrases."
The answer depends on where the 0 appears.
Standard notation (in the UK) is the same as scientific notation. So the one rule to use is DO NOTHING!
Salient rules means those rules likely to have a significant effect.
The initial zeros are not significant digits. Therefore, the scientific notation for this number is 2.5 X 10.