Rounding Numbers for 7-Year-Olds: Nearest Tens and Hundreds

Rounding Numbers to the Nearest Tens and Hundreds

Rounding is an easy way to make numbers simpler. We can make a number easier to work with by rounding it to the nearest ten or hundred. Let's learn how to do this step by step!

Rounding to the Nearest Ten

1. Look at the number: For example, let's round the number 42.
2. Find the last digit: Look at the ones place, which is the last digit. In 42, the ones place is 2.
3. Decide if you round up or down: If the ones digit is 5 or more (5, 6, 7, 8, or 9), you round up. If it is 4 or less (0, 1, 2, 3, or 4), you round down. Since 2 is less than 5, we will round down.
4. Write the rounded number: When we round down 42, it becomes 40.

Example:

Let's try rounding a different number: 76.

1. The last digit (ones place) is 6.
2. Since 6 is greater than 5, we round up.
3. The rounded number becomes 80.

Rounding to the Nearest Hundred

1. Look at the number: For example, let's round the number 234.
2. Find the last two digits: Look at the tens and ones places. In 234, the last two digits are 34.
3. Decide to round up or down: If the tens digit (which is 3 in this case) is 5 or more, you round up. If not, you round down. Since 3 is less than 5, we round down.
4. Write the rounded number: When we round down 234, it becomes 200.

Example:

Let’s try rounding another number: 586.

1. The last two digits are 86.
2. The tens digit (which is 8) is more than 5, so we round up.
3. The rounded number becomes 600.

Practice Rounding!

Try rounding these numbers to the nearest ten and hundred:

• Number: 47 ➡️ Rounded to the nearest ten: ?
• Number: 215 ➡️ Rounded to the nearest hundred: ?

Remember: Rounding makes numbers easier to work with. Just look at the number, check the last digit, and decide whether to round up or down!