30 is divisible by 10, so it is already at the nearest 10.
30
30
To the nearest ten, 30
30
Rounded to the nearest ten, 28 is approximately equal to 30.
30
30
It's already there.
To the nearest ten, 30
30 is already rounded to the nearest ten.
To round 31 to the nearest ten, we look at the digit in the tens place, which is 3. Since 3 is closer to 0 than to 10, we round down to the nearest ten. Therefore, 31 rounded to the nearest ten is 30.
That's Easy, 30.