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- Some measures simply do not make sense unless they are rounded. A common example is currency. There is little point in stating that 5% of 47 cents is 2.35 cents since such a sum does not exist. Or consider a school trip for 110 children where each bus takes 40 children. Will you hire 2.75 buses? No, you will round up to 3 buses because you cannot get 0.75 of a bus!
- Some numbers cannot be written out in full. For example, 1/13 = 0.0769230769... All Irrational Numbers would fall into this category.
- Excessive accuracy (absence of rounding) makes for much more complicated calculation with little, if any improvement in accuracy of the result. For example, the value of pi is known to over 10 trillion digits (as of Sept 2012). But , the value to only 39 decimal places is enough to give a measure of the circumference of the known universe that is accuracy to the diameter of a hydrogen atom. For most normal uses 5 dp (3.14159) is sufficient.
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What is the purpose of rounding numbers?
the purpose of rounding numbers is that you can get closer to the actual answer
How are you rounding whole numbers and decimals?
rounding whole numbers and decimals
How is rounding whole numbers and decimals similar?
Is the rounding is skidding
What is estimating NOT as helpful when multiplying very small numbers?
It is - if you use appropriate rounding. Rounding does not have to be to whole numbers.
Rules in rounding fraction numbers?
Add your whole numbers
What is the purpose of rounding numbers?
the purpose of rounding numbers is that you can get closer to the actual answer
How are you rounding whole numbers and decimals?
rounding whole numbers and decimals
What is the answer 1274 rounding numbers?
It depends on the degree of rounding.
What is front rounding of numbers?
The name comes from the way you round. Front end rounding is keeping the first number and rounding all the numbers after that.
How is rounding whole numbers and decimals similar?
Is the rounding is skidding
What is estimating NOT as helpful when multiplying very small numbers?
It is - if you use appropriate rounding. Rounding does not have to be to whole numbers.
What is the difference between a compatible number and rounding numbers?
rounding numbers is to nearest ten or hundred and compatible numbers are when you can do nearest 5
Why is rounding num bers easy?
Rounding numbers is easy because their are two rules to rounding numbers. 1) a </= 4 then a = 0 2) a >/= 5 then a = 10
What are the steps in rounding off numbers?
steps rounding off number
Rules in rounding fraction numbers?
Add your whole numbers
Who invented rounding to whole numbers?
Bob Sinclar invented rounding. :) Hope this was helpful. :]
How is rounding to the nearest ten similar to rounding to the nearest ten thousand?
They both involve rounding numbers.
