If 5 17 is kept to two decimal places, what is obtained by rounding and what is obtained by detailin

Two decimal places will be preserved. Then you have to use the rounding method to mainly look at the next digit, that is, the thousandth, if the thousandth is greater than five equals five. Then he goes forward one place and becomes five and eight.

If the thousandth is less than or equal to four, then subtract the rest and don't want anything. Become. That is to say, keep two decimal places, and only see that the third decimal place is more than four thousands.

Four or less than four. Don't.

If the third decimal place after the decimal point is a number of 5 or more, rounded to one place, it should be moved forward by one place, which is approximately equal to; If the third digit after the decimal point is the number 1--4 below 5, it is rounded off, approximately equal to; If you use the tail removal method, no matter what number is left behind, it is approximately equal. In real life, there are "tail removal methods" and "advanced methods", for example, it takes 1 meter of cloth to make a piece of clothing, how many pieces of the same clothes can be made from rice cloth? pieces) The number of pieces of clothing can only be an integer, if you use the rounding method, it is 6 pieces, but in fact, 1 meter can make a piece of clothing, so you have to use the tail method, regardless of whether it is 1 or 9 after the decimal point...., all removed; Another example is a pile of 12 tons of river sand, and a truck with a load of 5 tons will be transported at least how many times?

12 5 2 (times) ......2 (tons) No matter how many tons are left, they must be transported again, that is, they must be transported 3 times, which is the "one method".

It is not possible to determine what the number of ellipses is.

Use the rounding and infiltrating five method to keep one decimal place, and keep two small slow to check which file is;

So the answer is: ,

Keeping a decimal hole key with rounding off the method of repentance and ingenuity, about is, the original title said that the lead method was wrong;

So the answer is: ,

According to the "rounding" method, the number of a small branch is , and the integer of the retention is about 6;

So the answer is:,6

Therefore, the answer to Zen is: , know the chaos.

Rounding to one decimal place, the second decimal place needs to be rounded, and if the decimal place is 0, it needs to be retained.

For example: Keeping one decimal place is:

Keeping one decimal place is:

Keeping one decimal place is:

Use rounding.

Keep the whole number about 3, keep one decimal place about is, keep two decimal places is, you can know that the first three decimal places are;

25-(2+9+9)=5, so yes.

, keep the integer:

Keep one decimal place

Keep two decimal places: