You must convert to the same exponent. Example: 2 million + 300 million, written in normalized scientific notation, is 2 x 106 + 3 x 108. You must convert to the same exponent (for example, 8), to obtain 0.02 x 106 + 3 x 108. This you can add: 0.02 + 3 = 3.02, so the result is 3.02 x 108.
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
Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.
no answer
Ensure that the denominators are the same when adding or subtracting fractions.
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
- when adding or subtracting in scientific notation, you must express the numbers as the same power of 10. This will often involve changing the decimal place of the coefficient.
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
Subtracting a negative is the same as adding the equivalent positive. For example, subtracting minus 10 is the same as adding 10.
your mom is 2
no answer
Ensure that the denominators are the same when adding or subtracting fractions.
David Missoula's
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
They aren't. The rules are the same as those for adding/subtracting or multiplying integers. Just be careful of the decimal point's location.
20,000 + 3,400,000
line up the decimal point when your adding and subtracting. add annex a zero when you have extra number. sometimes you can use a number line.
If their denominators are different then find their lowest common denominator by means of their lowest common multiple remembering to adjust their numerators accordingly before adding or subtracting.