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in adding scientific notations you have to make their exponents the same then add the numbers. after you add coppy th x 10 and its exponent
ex.
1.25 x 10e10 + 7.5 x 10e9
=1.25 x 10e10 + 0.75 x10e10(you can see that the decimal point is move to the left so that its exponent will be equal)
=2.0 x 10e10(final ans.)
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What are the rules writing of scientific notation?
In scientific notation all numbers are written in the form: a*10b where a is a decimal number such that 1 ≤ a < 10 and b is an integer.
What are the rules when expressing a long mathematical expression to scientific notation form?
Scientific notation is of little use for long mathematical expressions. It is used to express very large or very small numbers - not expressions.
What are the rules of adding subtracting dividing and multiplying written in scientific notation?
1 With addition change the scientific notation back to 'normal numbers' and then add accordingly 2 With subtraction change the scientific back to 'normal numbers' and then subtract accordingly 3 With division subtract the exponents and divide the decimals 4 With multiplication add the exponents and multiply the decimals 5 Note that if changes occur below 1 or greater than 9 in the decimal element of the scientific notation then appropriate adjustments must be made
What is the scientific notation plus and - rules?
20,000 + 3,400,000
What are the rules in adding and subtracting significant figure and scientific notation?
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
