Maths
Number
Rounding and Estimating
Rounding to the Nearest Ten — Let's Practise!

Rounding to the Nearest Ten — Let's Practise!

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Basics on the topic Rounding to the Nearest Ten — Let's Practise!

Today we are practising rounding to the nearest ten with Razzi! This video contains examples to help you further practise and grow confident in this topic.

Transcript Rounding to the Nearest Ten — Let's Practise!

Razzi says get these items ready because today we're going to practise rounding to the nearest ten. It's time to begin! Round ninety-four to the nearest ten. Pause the video to work on the problem and press play when you are ready to see the solution! Four is in the ones place, so round down. Ninety-four rounded to the nearest ten is ninety. Did you also get ninety? Let's tackle the next problem! Round thirty-six to the nearest ten. Pause the video to work on the problem and press play when you are ready to see the solution! Six is in the ones place, so round up. Thirty-six rounded to the nearest ten is forty. Did you also get forty? Here is the next number! Round one hundred and sixty-five to the nearest ten. Pause the video to work on the problem and press play when you are ready to see the solution! Five is in the ones place, so round up. One hundred and sixty-five rounded to the nearest ten is one hundred and seventy. Did you also get one hundred and seventy? Let's tackle the final problem! Round nine hundred and twenty-one to the nearest ten. Pause the video to work on the problem and press play when you are ready to see the solution! One is in the ones place, so round down. Nine hundred and twenty-one to the nearest ten is nine hundred and twenty. Did you also get nine hundred and twenty? Razzi had so much fun practising with you today! See you next time!

Rounding to the Nearest Ten — Let's Practise! exercise

Would you like to apply the knowledge you’ve learnt? You can review and practice it with the tasks for the video Rounding to the Nearest Ten — Let's Practise!.

Round two digit numbers to the nearest 10.
Hints

Remember, when rounding to the nearest ten, look at the ones.
If the ones digit is 0, 1, 2, 3 or 4 - round down.
If the ones digit is 5, 6, 7, 8 or 9 - round up.

With the number 27, there is a 7 in the ones column. What do we do when the ones are 5, 6, 7, 8 or 9?

Solution
Here are the numbers rounded to the nearest 10.
- 49 = 50
- 35 = 40
- 23 = 20
- 54 = 50
More rounding to 10.
Hints

Remember, when rounding to the nearest ten, look at the ones.
If the ones digit is 0, 1, 2, 3 or 4 - round down.
If the ones digit is 5, 6, 7, 8 or 9 - round up.

In this number, there is a 4 in the ones column. When we round this to the nearest ten, will we round up or down?

Solution
The numbers rounded to the nearest 10 are:
- 44 = 40
- 29 = 30
- 164 = 160
- 145 = 150
Find the nearest 10.
Hints

Look at the digit in the ones column.
If this is 0, 1, 2, 3 or 4 - round down.
If this is 5, 6, 7, 8 or 9 - round up.

Here is the number 45. In the ones column there is a 5. Would we round up or down?

Solution
The numbers rounded to the nearest 10 are:
- 75 = 80
- 93 = 90
- 62 = 60
- 15 = 20
Round the numbers.
Hints

Look at the digit in the ones column.
If this is 0, 1, 2, 3 or 4 - round down.
If this is 5, 6, 7, 8 or 9 - round up.

In this number, what digit is in the ones column?
Try writing the number onto a place value chart to check which digit is in the ones column.

Solution
When each number is rounded to the nearest 10:
- 82 = 80
- 153 = 150
- 284 = 280
- 185 = 190
- 573 = 570
Round to the nearest 10.
Hints

Look at the digit in the ones column.
If this is 0, 1, 2, 3 or 4 - round down.
If this is 5, 6, 7, 8 or 9 - round up.

In this number, the ones column has the number 4, so we round down to 50.

Solution
These numbers rounded to the nearest 10 are:
- 24 = 20
- 56 = 60
- 28 = 30
- 132 = 130
Solve the problems by rounding.

Hints

Try looking at the numbers smaller than 460. How small can you go before the number would have to round down to 450 rather than up to 460?

Look at the ones in the number: 454. Would this number round up to 460 or round down to 450?

Solution

When rounding a number to the nearest 10 and reaching 460, the smallest possible number is 455 and the largest posssible number is 464.