I am realising that the question can be asking two things. Q1) what is 720 rounded to the nearest 10? A1) 720, as 720 is divisible by 10 Q2) A number has been rounded to the nearest 10, and the answer is 720, but what was the original number? A2) the number could have been any number between 715 and 724.99999.... hope it helps
724 rounded to the nearest ten is 720. When rounding a number to the nearest ten, you look at the digit in the ones place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit in the ones place is 4, so we round down to the nearest ten, which is 720.
50
453 + 56 = 509 so nearest 10 is 510
7 is more than half way to the next ten, so 87 to the nearest 10 is 90.
84722880
720 rounds down to 700.
720
It is already at the nearest 10, so there is no change. It is 439200.
724 rounded to the nearest ten is 720. When rounding a number to the nearest ten, you look at the digit in the ones place. If it is 5 or greater, you round up; if it is less than 5, you round down. In this case, the digit in the ones place is 4, so we round down to the nearest ten, which is 720.
It is already at the nearest 10, so there is no change. It is 439200.
Round 412 nearest 10? Answer: 400 Reason: You play with last 2 digits of 412 (because he asked to round nearest 10; i.e. 12, now 11-14 is nearest to 10 so round to 10. So, 412 nearest to 10 is then 400.
72 is not a prime number
The nearest 10 to 340 is 340 itself. When determining the nearest 10, you are looking for the multiple of 10 that is closest to the given number. Since 340 is already a multiple of 10, it is the nearest 10 to itself.
50
40 is divisible by 10, so it is already at the nearest 10 and does not need to be changed.
30 is divisible by 10, so it is already at the nearest 10.
453 + 56 = 509 so nearest 10 is 510