Whole numbers include 235, 236, 237, 238 and 239
An integer is a whole number. To round you take the number to the right, and if it is 1-4 you round all the numbers to the right of the whole numbers and delete them. If the number is 5-9 you round up. In this case the number beside the integer is 6, which rounds up. 69.65 rounds up to 70.
Anything from 550 to 649
The short answer is, infinite. With just integers, There are 498 numbers that can round up to 500, and 498 that can round down. If we include partial numbers, there are infinite, since the numbers can get infinitesimally small.
13999 and 13998
When rounding to the nearest ten thousand half round up and half round down. Thus 10,000 ÷ 2 = 5,000 numbers either side of 520,000 round to it, ie 520,000 ± 5,000. However, as numbers exactly halfway round up: Thus any number greater than or equal to 515,000 and less than 525,000 round to 520,000 to the nearest ten thousand.
240
Half of 10 is 5.So numbers in the range 800 ± 5 round to 800 to the nearest 10, except that numbers exactly half way round up. Thus all numbers greater than or equal to 800 - 5 round up to 800 and all numbers less than 800 + 5 round down to 800,That is all numbers greater than or equal to 795 and less than 805 will round to 800 to the nearest 10.
When you round up all the numbers to a number that they are all close to and multiply how many numbers there are by the rounded number.
44, when rounding you need to round all of the numbers up.
An integer is a whole number. To round you take the number to the right, and if it is 1-4 you round all the numbers to the right of the whole numbers and delete them. If the number is 5-9 you round up. In this case the number beside the integer is 6, which rounds up. 69.65 rounds up to 70.
Infinitely many. There are infinitely many numbers between any two numbers. So, for example, cosidering only the numbers that round up, there are an infinitely many numbers between 149.999 and 150, all of which would round to 150. And there are another infinity between 149.5 and 149.999 which, to the nearest unit would round to 150. If you are rounding to the nearest 10, all the numbers between 145 and 150 would also round to 150. In all cases you must also consider the numbers that are rounded down to 150.
It ends in 5, so it rounds up to 240.
Factors multiply. The same set of numbers won't add up to both 140 and 240, but 120 and 20 are factors of 240 that total 140.
The numbers are 57, 59, 61 and 63.
Integers include 75, 76, 77, 78 and 79.
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.