815 rounded to the nearest tens is 820
820
It is 10.
cf. "How do you round 85 to the nearest 10?" in this website.
To the nearest $10: $5.71 → $10
815 rounded to the nearest tens is 820
800
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.
In the decimal numbering system, the digits are each in a place that indicates their value. The number 815 has: * an 8 in the place indicating the number of hundreds, * a 1 in the place indicating the number of tens, * a 5 in the place indicating the number of ones. To "round to the nearest tens place" means to round the value of the places below the tens. In the number 815, this is only the digit 5. In a commonly used rounding system, all digits below 5 are rounded down to 0, and all digits above and including 5 are rounded up to the next place. 815 therefore rounds to 820. (814 would round to 810.)
Round 42,199,279 to the nearest 10 million.
Tio the nearest 10, it is 0.
As it ends with a five, it will round up, so 30 is the nearest 10.
Round 15 to the nearest 10 would be 20, as it is closer to 20 than 10.
820
To the nearest ten: 10
10
The answer is 10