I assume in your question you are asking what happens when a number is in between two whole numbers. E.G 4 and 5 the middle is 4.5 If you wanted to round this up to 1 significant figure or an integer/whole number the rule is that if in the middle you always round up to the highest number. In the case of the example the answer would be 5 if you were to round it up.
Sometimes you round up or round down numbers to get close to the correct answer so that you can make sure that your answer is right. If your answer is not close to the rounding down of the numbers you are using then you need to look it over and do it again.
Always look at the next digit. If it's between 0 & 4 inclusive - round the number down. If it's between 5 & 9 inclusive - round up. Take the numbers 10.094 and 10.096. 10.094 would round down - to 10.09... 10.096 would round up to read 10.10
120005 Some people will argue that 5 should always be rounded up. That is wrong since it introduces an upward bias. If you follow these rules: 0 no rounding required. 1,2,3,4 round down 5,6,7,8,9 round up A random set of numbers will end equally in any one of the digits. You are round up 5 times out of ten and rounding donw only 4 out of ten. This introduces a bias. The solution is to round 5s up or down to an even digit. Then 1 out of ten does not require rounding, 4 out of ten are always rounded down, 4 out of ten always rounded up, and one is rounded up or down with equal probability. Result? Expected bias = 0.
up, so you would round 3.5 to 4.
The percentage of the horse's UTs are very rarely whole numbers. If you are calculating the UTs of a horse, simply round up or round down (less than 5, you round down. 5 and up, you round up!). However, the actual UT stats (such as 670 out of 700 intelligence, just as an example) are always whole numbers.
I assume in your question you are asking what happens when a number is in between two whole numbers. E.G 4 and 5 the middle is 4.5 If you wanted to round this up to 1 significant figure or an integer/whole number the rule is that if in the middle you always round up to the highest number. In the case of the example the answer would be 5 if you were to round it up.
Sometimes you round up or round down numbers to get close to the correct answer so that you can make sure that your answer is right. If your answer is not close to the rounding down of the numbers you are using then you need to look it over and do it again.
If the numbers suggest that you should not then it is not better to round.
Always look at the next digit. If it's between 0 & 4 inclusive - round the number down. If it's between 5 & 9 inclusive - round up. Take the numbers 10.094 and 10.096. 10.094 would round down - to 10.09... 10.096 would round up to read 10.10
120005 Some people will argue that 5 should always be rounded up. That is wrong since it introduces an upward bias. If you follow these rules: 0 no rounding required. 1,2,3,4 round down 5,6,7,8,9 round up A random set of numbers will end equally in any one of the digits. You are round up 5 times out of ten and rounding donw only 4 out of ten. This introduces a bias. The solution is to round 5s up or down to an even digit. Then 1 out of ten does not require rounding, 4 out of ten are always rounded down, 4 out of ten always rounded up, and one is rounded up or down with equal probability. Result? Expected bias = 0.
up, so you would round 3.5 to 4.
8450000001 8499999999 8450000002 8498888888 84978963451 84500000003
The numbers are 58, 59 and 60.
No, the numbers are already rounded. The answer is 1300.
They are always rounding things up!
297.8 square kilometres. Now here is a minor digression that you may (or may not) find is of interest: There are different views on how the digit 5 should be rounded - up or down. 1,2,3 and 4 are always rounded down; 6,7,8 and 9 are always rounded up and 0 does not need rounding. So if you always round 5 down, you will round down 5 numbers and up 4 and so introduce a downward bias in your work. Conversely, if you always round up you will introduce an upward bias. You could randomly decide to round up or down but this makes it more difficult for others to follow what you have done. The recommended answer is to round 5 so that the previous digit is EVEN. Thus 0.15 is rounded up to 0.2 and 0.45 is rounded down to 0.4