Ordering Decimals
Maths: Year 3 & 4 National Curriculum, topic 5.4.7
Ordering Decimals
You can use place value grids to help you order decimals.
,w_800.png)
Using place value
- To order these decimals, you need to look closely at the place value.
Place value grid
- Put your numbers in a place value grid.
Start with the 'ones'
- To put the numbers in order, start by looking at the 'ones' column.
- All four numbers have 7 'ones'.
- So there is no difference in the 'ones' for all numbers.
Next, check the 'tenths' column
- In the 'tenths' column you can begin to order the numbers.
- You can see that 7.45 is the smallest as it has the least amount of 'tenths'.
- 7.58 is the second smallest as it has the second least amount of 'tenths'.
7.45 and 7.58
- You know the smallest number is 7.45, followed by 7.58.
- You need to be able to work out which is smaller out of 7.61 and 7.63.
- Next, look at the 'hundredths' column to find out.
The 'hundredths' column
- You can see 7.61 is smaller than 7.63 by looking at the 'hundredths' column.
- 7.61 and 7.63 both have the same number of 'ones' and 'tenths'.
- 7.63 has 3 'hundredths' and 7.61 has 1 'hundredths'.
- So, 7.61 is smaller than 7.63.
Test yourself on Ordering Decimals
Which of these numbers is the smallest?
Which of these numbers is the largest?
Which of these numbers is the smallest?
Which of these numbers is the largest?