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How do you add and subtract numbers using scientific notation? - Answers

To add or subtract numbers in scientific notation you first need to equalise their exponents. Having done that, you carry out the addition or subtraction on the significands and append the common exponent. Then you adjust the exponent so that the significand is between 1 and 10. For example, 1.234*104 - 2.34*102 (equalise exponents) = 123.4*102 - 2.34*102 (carry out subtraction) = (123.4-2.34)*102 = 121.06*102 (adjust exponent) = 1.2106*104



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How do you add and subtract numbers using scientific notation? - Answers

https://math.answers.com/other-math/How_do_you_add_and_subtract_numbers_using_scientific_notation

To add or subtract numbers in scientific notation you first need to equalise their exponents. Having done that, you carry out the addition or subtraction on the significands and append the common exponent. Then you adjust the exponent so that the significand is between 1 and 10. For example, 1.234*104 - 2.34*102 (equalise exponents) = 123.4*102 - 2.34*102 (carry out subtraction) = (123.4-2.34)*102 = 121.06*102 (adjust exponent) = 1.2106*104



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https://math.answers.com/other-math/How_do_you_add_and_subtract_numbers_using_scientific_notation

How do you add and subtract numbers using scientific notation? - Answers

To add or subtract numbers in scientific notation you first need to equalise their exponents. Having done that, you carry out the addition or subtraction on the significands and append the common exponent. Then you adjust the exponent so that the significand is between 1 and 10. For example, 1.234*104 - 2.34*102 (equalise exponents) = 123.4*102 - 2.34*102 (carry out subtraction) = (123.4-2.34)*102 = 121.06*102 (adjust exponent) = 1.2106*104

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      To add or subtract numbers in scientific notation you first need to equalise their exponents. Having done that, you carry out the addition or subtraction on the significands and append the common exponent. Then you adjust the exponent so that the significand is between 1 and 10. For example, 1.234*104 - 2.34*102 (equalise exponents) = 123.4*102 - 2.34*102 (carry out subtraction) = (123.4-2.34)*102 = 121.06*102 (adjust exponent) = 1.2106*104

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