400
When rounding 402 to the nearest tens, you look at the digit in the tens place, which is 0. Since 0 is less than 5, the digit remains the same, so 402 rounded to the nearest tens is 400. When rounding to the nearest hundreds, you look at the digit in the hundreds place, which is 4. Since 4 is less than 5, the hundreds digit remains the same, so 402 rounded to the nearest hundreds is 400.
400
It is 400
500
80,000 is already rounded to the nearest hundreds.
It is: 400
0
0
1140
712500
1400
64300