Parentheses, exponents, multiplication and division, addition and subtraction.
Same.
This is effectively the same as lining up the decimal points when adding or subtracting ordinary decimal fractions.
When adding or subtracting numbers in scientific notation, ensure that the exponents are the same. If the exponents are not the same, adjust one or both numbers to match. Then, add or subtract the coefficients while keeping the exponent the same. Finally, simplify the result if necessary by converting it back to proper scientific notation.
Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.
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no answer
Ensure that the denominators are the same when adding or subtracting fractions.
It can be a problem to do with adding or subtracting or exponents.
David Missoula's
Yes, it does.
Fractional exponents follow the same rules as integral exponents. Integral exponents are numbers raised to an integer power.