1.
Round the number to the nearest ten.
25
Explanation
To round a number to the nearest ten, we look at the digit in the ones place. If the digit is 5 or greater, we round up by adding 1 to the tens place. In this case, the digit in the ones place is 5, so we round up to the next ten, which is 30.
2.
Round the number to the nearest ten.
86
Explanation
To round the number 86 to the nearest ten, we look at the digit in the ones place, which is 6. Since 6 is greater than or equal to 5, we round up. Therefore, the number 86 rounds to 90, which is the nearest ten.
3.
Round the number to the nearest ten.
214
Explanation
To round the number 214 to the nearest ten, we look at the digit in the ones place, which is 4. Since 4 is less than 5, we round down. Therefore, the tens digit remains the same (2) and the ones digit becomes 0. Thus, the rounded number to the nearest ten is 210.
4.
Round the number to the nearest ten.
483
Explanation
The given number, 483, needs to be rounded to the nearest ten. In order to do this, we look at the digit in the ones place, which is 3. Since 3 is less than 5, we round down to the nearest ten. Therefore, the number rounded to the nearest ten is 480.
5.
Round the number to the nearest hundred.
537
Explanation
To round a number to the nearest hundred, we look at the digit in the tens place. If it is 5 or greater, we round up to the next hundred. If it is less than 5, we round down to the previous hundred. In this case, the digit in the tens place is 3, which is less than 5. Therefore, we round down to the previous hundred, which is 500.
6.
Round the number to the nearest hundred.
709
Explanation
To round a number to the nearest hundred, we look at the digit in the tens place. If it is 5 or greater, we round up. If it is less than 5, we round down. In this case, the digit in the tens place is 0, which is less than 5. Therefore, we round down to the nearest hundred, which is 700.
7.
Round the number to the nearest hundred.
455
Explanation
To round the number to the nearest hundred, we look at the tens digit. If the tens digit is 5 or greater, we round up to the next hundred. If the tens digit is less than 5, we round down to the current hundred. In this case, the tens digit is 5, so we round up to the next hundred, which is 500.
8.
Round the number to the nearest ten.
76
Explanation
To round a number to the nearest ten, we look at the digit in the ones place. If it is 5 or greater, we round up, and if it is less than 5, we round down. In this case, the digit in the ones place is 6, which is greater than 5. Therefore, we round up to the nearest ten, which is 80.
9.
Round the number to the nearest hundred.
361
Explanation
When rounding to the nearest hundred, we look at the tens digit (the second digit from the right). For 361, the tens digit is 6. Since 6 is 5 or greater, we round the hundreds place (3) up by 1, making the number 400.
If the tens digit had been less than 5, we would have kept the hundreds digit the same. Thus, rounding 361 to the nearest hundred gives us 400.
10.
Round the number to the nearest hundred.
258
Explanation
To round a number to the nearest hundred, we look at the tens digit. If the tens digit is 5 or greater, we round up to the next hundred. If the tens digit is less than 5, we round down to the previous hundred. In this case, the tens digit is 5, so we round up to the next hundred, which is 300.