To round 3400 to the nearest 100, you look at the hundreds place, which is the second digit from the right. In this case, the hundreds place is 4. Since 4 is less than 5, you keep the hundreds digit the same and change all digits to the right to zero, resulting in 3400.
The number 3400 is already rounded to the nearest 10.
300
3400
200
To round 97 to the nearest 100, you need to look at the digit in the tens place, which is 9 in this case. Since 9 is greater than or equal to 5, you will round up. Therefore, 97 rounded to the nearest 100 is 100.
The number 3400 is already rounded to the nearest 10.
3400.
3400
3400
3400
3000
3426 rounded to the nearest thousand is 3000 because 400 is less than 500
3400
372 rounded to the nearest hundred is 400
300
100
3400