Convert Metres to Kilometres | Year 4 Maths Resources

## What you need to know

Things to remember:

• The “thousands” go on the left of the decimal.
• The “hundreds” go on the right of the decimal.
• If there are only thousands, there will be no decimal!

We will use converting from kilometres to metres to help us see how we can convert from metres to kilometres.

“Convert 5.9km to m”

Let’s split this into the whole number and the decimal

5km = 5000m

0.9km = 900m

$$5.9km =5km+ 0.9km = 5000m + 900m = 5900m$$

If we flip this around to start with km, then we will notice something nice.

$$5900m =5000m + 900m = 5km + 0.9km = 5.9km$$

We can see that the thousands become a “whole number” of kilometres, and the hundreds become the decimal part.

$$7600m =7000m + 600m = 7km+0.6km = 7.6km$$

$$1300m =1000m + 300m = 1km+0.3km 1.3km$$

$$6600m =6.6km$$

$$2400m =2.4km$$

If we only have thousands, then there won’t be a decimal!

$$1000m = 1km$$

$$5000m = 5km$$

$$9000m = 9km$$

## KS2 SATs Flash Cards

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## Example Questions

3000m = 3km

$$9800m =9000m + 800m = 9km+0.8km = 9.8km$$

## Times Table Flash Cards

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• All of the KS2 times tables are covered
• Engaging and fun maths cards