What are the rules in rounding numbers?

Answer 1

When rounding to a specific place, take a look at the digit immediately to the right of the target. If that digit is 4 or less, zero everything to the right of the target out. If that digit is 5 through 9, increase the target by one and zero everything to the right of it out. If the target is a 9, increasing it will turn it to zero and increase the digit to the left of the target by one.

Answer 2

in whole numbers, if the last part of the number is five or above, it rounds to the next 0. e.g. 47 rounds to 50

In decimals, if you say round to the nearest tenth, you look at the hundredth point and round up. e.g. 47.57 rounds to 47.6

Also, If you say round to the nearest hundredth, look at the thousandth point and round up

eg 47.575 rounds to 47.58

and so on

Answer 3

If the number ends in 1 2 3 4 round down and round the number up if it ends 5 6 7 8 9 to get rounded to the nearest ten.

If the number ends in 1-49 inclusively round down and round the number up if ends with 50-100 inclusively.

For bigger numbers like 1000000 half then take away 1 to find the number to round down and the rest is rounded up.

e.g. Round 776758 to the nearest million.

1/2 of 1000000 is 500000 - 1 is 499999.

So if the number is less than 7499999 round if not round up.

Answer is 8000000.

Answer 4

5 ,6 7 8 9 0 u round up

4 3 2 1 u round down

ex:41,42,43, or44 =40

45,46,47,48,49,=50

Answer 5

Lets say it's to the nearest 100 1) If you're over 50 like 165 you HAVE to round up 2) And if you are under 50 as in 120 you HAVE to round down