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What is the rule about rounding when a number ends in 5?
In rounding off numbers, if the first figure dropped is 5, and all the figures following the five are zero or if there are no figures after the 5, then the last figure kept should be unchanged if that last figure is even. For example, if only one decimal is to be kept, then 6.6500 becomes 6.6.
Do you round down to zero?
So in order to round to the nearest integer, you’d round to 0.
How do you explain rounding off numbers?
What is Rounding Off? Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers, and for decimals at various places of hundreds, tens, tenths, etc. Rounding off numbers is done to preserve the significant figures.
Why do we round off numbers?
Rounding numbers makes them simpler and easier to use. Although they’re slightly less accurate, their values are still relatively close to what they originally were. People round numbers in many different situations, including many real-world situations you’ll find yourself in on a regular basis.
Why do we round 0.5 up?
And the answer is that it is closer to 1.0. Therefore, in real-world situations, as well as real-number situations, 0.5 ought to be rounded UPWARD because we shouldn’t assume there aren’t more digits. Given that assumption—that there are more digits to the right somewhere—rounding up always makes sense!
What does it mean to round off a number?
Rounding off means a number is made simpler by keeping its value intact but closer to the next number. It is done for whole numbers, and for decimals at various places of hundreds, tens, tenths, etc. Rounding off numbers is done to preserve the significant figures.
Why can’t we round down the value of a number?
Because rounding down would be at least as wrong. But consider this: There really is no reason to assume you’re dealing with 0.5 precisely. The only thing the rule looks at is the last “significant” digit, where “significant” is just an arbitary number of digits. So, you are looking at the X digits to the right
What is the standard range for rounding up to 0?
Following the IEEE standard, 0.5 should be rounded down to 0, while following the IRS scheme, it should be rounded up to 1. The choice of standard is context specific. 8 clever moves when you have $1,000 in the bank. We’ve put together a list of 8 money apps to get you on the path towards a bright financial future.
Is it wrong to round up instead of down?
Look at the problem of rounding 0.5. If the number happens to be 0.5 precisely, then yes, it would seem arbitary to round upward rather than downward. Still, it isn’t wrong to round upward. Because rounding down would be at least as wrong. But consider this: There really is no reason to assume you’re dealing with 0.5 precisely.