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What are the rules of adding subtracting dividing and multiplying written in scientific notation?
Wiki User
∙ 10y ago
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
Wiki User
∙ 10y ago
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What is the benefit of writing number in scientific notation?
Ask yourself. Would you rather write this out in long hand? 234,000,000,000,000,000,000 ----------------------------------- Or this? 2.34 X 1020 -------------- Let alone adding, subtracting, multiplying and dividing the first long number.
What is the disadvantage of using scientific notation?
If you are adding or subtracting two numbers in scientific notation, you must rewrite one of the numbers to the same power of ten as the other, before performing the addition (or subtraction).
When multiplying numbers in scientific notation what do you do with the exponent?
Add them
When dividing in scientific notation what do you do with the exponents?
When dividing in scientific notation, you subtract the exponent of the divisor from the exponent of the dividend. This will give you the exponent of the quotient after division.
When adding or subtracting numbers written in scientific notation the exponents must be the?
Same.
Does the negative rule for exponents using scientific notation apply to adding subtracting dividing and multiplying?
Yes, it does.
What is the benefit of writing number in scientific notation?
Ask yourself. Would you rather write this out in long hand? 234,000,000,000,000,000,000 ----------------------------------- Or this? 2.34 X 1020 -------------- Let alone adding, subtracting, multiplying and dividing the first long number.
Rules in adding or subtracting scientific notation?
- 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.
When multiplying numbers in scientific notation what do you do with the exponent?
Add them
What is the disadvantage of using scientific notation?
If you are adding or subtracting two numbers in scientific notation, you must rewrite one of the numbers to the same power of ten as the other, before performing the addition (or subtraction).
When subtracting numbers in scientific notation what you do with exponents?
yes its really important
When dividing in scientific notation what do you do with the exponents?
When dividing in scientific notation, you subtract the exponent of the divisor from the exponent of the dividend. This will give you the exponent of the quotient after division.
When adding or subtracting numbers written in scientific notation the exponents must be the?
Same.
When dividing number in scientific notation what must you do with the exponents?
Subtract them.
Why would multiplying numbers in scientific notation be easier than multiplying them the regular way?
Multiplying numbers in scientific notation is easier when the numbers are very, very large or very, very small. Multiplying 0.000000000385 x 0.0000000474 is a pain. Multiplying 3.85 x 10-10 x 4.74 x 10-8 is not.
How do you solve a problem using scientific notation?
Multiplying each factor by powers of ten
What is the value of scientific notation?
The idea is to save page space and time. Instead of writing out a 1 followed by 100 zeros for a google (which would take up a long time and a lot of space) you simply write 10^100. +++ It can, depending on the values being manipulated, also facilitate arithmetic by turning multiplying or dividing the powers into adding or subtracting the indices (the principle of the logarithm).
