 Rounding to 1 decimal place | Year 5 Maths Reosurces

## What you need to know

Things to remember:

• When rounding to 1 decimal place we look at the hundredths to see how to round.
• If the hundredths are 4 or less, the tenths stay the same and the hundredths become 0.
• If the hundredths are 5 or more, the tenths go up by 1 and the hundredths become 0.

Let’s remind ourselves how we round to the nearest 10.

We find the tens and then look to the right.
If the units are 4 or less, the tens stay the same and the units become 0.
If the units are 5 or more, then tens go up by 1 and the units become 0.

Number Rounded

22 20

31 30

65 70

38 49

So, let’s look at how we round to 1 decimal place.

Round 2.36 to 1 decimal place.

We do this using the same step as we have done previously.

Step 1: Find first decimal place (the tenths).

2.36

Step 2: Look at the number to the right (the hundredths)

2.36

Step 3: Round the tenths.

We have a 6, so the 3 is going to increase by 1 to make 4.

2.40

Step 4: Remove the 0

2.4

So, 2.36 rounded to 1 decimal place is 2.4.

We do the same when the hundredths are less than 5, but the units tenths don’t change.

## Example Questions

Step 1: Find first decimal place (the tenths).

5.89

Step 2: Look at the number to the right (the hundredths)

5.89

Step 3: Round the tenths.

We have a 9, so the 8 is going to increase by 1 to make 9.

5.90

Step 4: Remove the 0

5.9

So, 5.89 rounded to 1 decimal place is 5.9.

Step 1: Find first decimal place (the tenths).

6.23

Step 2: Look at the number to the right (the hundredths)

6.23

Step 3: Round the tenths.

We have a 3, so the 2 is going to stay the same.

6.20

Step 4: Remove the 0

6.2

So, 6.23 rounded to 1 decimal place is 6.2.

## Times Table Flash Cards

(30 Reviews) £8.99 £5.99
• All of the KS2 times tables are covered
• Engaging and fun maths cards