Look at the last digit. If it is a zero, it does not need to be rounded.
4870 does not change.
If it is 1, 2, 3 or 4, it is rounded down, replacing that digit with a zero.
5214 becomes 5210.
If it is 5, 6, 7, 8 or 9, it is rounded up, so the digit becomes zero and the digit beside it is incremented by one.
8176 becomes 8180.
To the nearest 'ten' as you said, it would be: 10 To the nearest 'tenth," it would be: 8.1 To round a number, look at the number right after the number you want it to stop at. If that number is greater than 5, then you round up one digit. If it is 4 or below, the digit stays the same.
Your question is obviously missing something. I'm pretty sure that you meant to ask what is the greatest 2 digit number that is still a 2 digit number when rounded to the nearest 10. The answer could be 94 or 95, depending upon how you round 95. 95 could be rounded to 90 or to 100, since it is exactly half way between 90 and 100. There is no hard and fast rule regarding how you should round a number ending in 5.
Since the last digit is over 5, than you round up to 730.
It depends on how precise you want to be. To round to the nearest tenth, you would observe that the digit n the thousands position is 1, which is closer to 0 than to 10 so you would round down to get 35.7 To round to the nearest whole number, you would observe that the digit n the tenths position is 7, which is closer to 10 than to 0 so you would round up to get 36. To round to the nearest ten, you would observe that the digit n the ones position is 5 (and that there is a bit more in the decimal spots), which is closer to 10 than to 0 so you would round up to get 40. To round to the nearest hundred, you would observe that the digit n the tens position is 3, which is closer to 0 than to 10 so you would round down to get 0.
As the final digit is a 9 we round up so the answer is 43180.
To round a number to a power of 10, you look at the digit in the place value column following the digit to which you wish to round; if it is 0-4 the number rounds down otherwise it rounds up. To round to the nearest 10, you look at the units digit; to the neatest 100, you look at the 10s digit, to the nearest 10,000 you look at the 1,000s digit. In every case the digit is a 9, so the number rounds up (each time) to 1,000,000.
To the nearest 'ten' as you said, it would be: 10 To the nearest 'tenth," it would be: 8.1 To round a number, look at the number right after the number you want it to stop at. If that number is greater than 5, then you round up one digit. If it is 4 or below, the digit stays the same.
you round up on a number if the last digit is 5 thru 9 you round down if the last digit is 4 thru 1 therefore 31 rounded to the nearest ten is 30
45420
When rounding a number to the nearest whole number, you look at the digit immediately to the right of the decimal point. In this case, the digit is 2. Since 2 is less than 5, you would round down. Therefore, 10.245 rounded to the nearest whole number is 10.
320
590
Look at the digit in the ones position. That is the 9. A 9 will round the number up, so 89 will round up to 90.
To round a number, look at the digit to the right of the place you want to round to. If it is 5 or more, change the digit in the place you're rounding to to the next higher digit. If the digit to the right of the place you're rounding to is less than 5, leave the digit in the place you are rounding to as it is. Change all digits to the right of the place you are rounding to to zeros. 198 rounded to the nearest ten is 200.
To round 1395 to the nearest 10, we look at the digit in the tens place, which is 9. Since 9 is greater than or equal to 5, we round up. Therefore, 1395 rounded to the nearest 10 is 1400.
12.6 rounded to the nearest 10 is 10.
Your question is obviously missing something. I'm pretty sure that you meant to ask what is the greatest 2 digit number that is still a 2 digit number when rounded to the nearest 10. The answer could be 94 or 95, depending upon how you round 95. 95 could be rounded to 90 or to 100, since it is exactly half way between 90 and 100. There is no hard and fast rule regarding how you should round a number ending in 5.