  # Practise Rounding Numbers to the Nearest 10, 100 or 1,000

In this worksheet, students will practise rounding numbers to 10, 100, and 1,000. Key stage:  KS 2

Curriculum topic:   Number: Number and Place Value

Curriculum subtopic:   Round Numbers Up/Down (to 10, 100 or 1000)

Difficulty level:   #### Worksheet Overview

When rounding numbers to any multiple of 10 (10, 100, 1000, etc), we look at the digit in the column to the right of the number we are rounding to.

Rounding to 10 - look at the ones column  16

Rounding to 100 - look at the tens column   261

Rounding to 1,000 - look at the hundreds column  5,623

If the digit we are looking at is either 0  1  2  3  4 we round down.

If the digit is either 5  6  7  8  9 we round up.

Let's have a look at a few examples before you try some.

Round these numbers to the nearest 10

15   - the digit to the right of the tens column is a 5 so we round up to 20.

1 - the digit to the right of the tens column is a 2 so we round down to 10.

Round these numbers to the nearest 100

272   - the digit to the right of the hundreds column is a so we round up to 300

649  - the digit to the right of the hundreds column is a 4 so we round down to 600

Round these numbers to the nearest 1,000

9,999   - the digit to the right of the thousands column is a so we round up to 10,000

6,497  - the digit to the right of the thousands column is a 4 so we round down to 6,000

Round this number to the nearest 1,000

2199

Even though the tens and ones columns are 9s, we still round down because the hundreds digit is a 1 Have a look at this problem involving rounding numbers.

Jane rounded a number to the nearest 10

What are all the possible numbers she could have started with?

Janes's starting number could have been:

85  86  87  88  89  - rounded up to 90

91  92  93  94  - rounded down to 90 Good luck with the following questions!

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