1. Converting units of measurement

2. Length Length is measured in linear units e.g. millimetres, centimetres, metres, kilometres

3. Length There are: 10 mm = 1 cm 100 cm = 1 m 1000 m = 1 km

4. Converting units of length mmmkm 10100 cm 1000

5. mmmkm ÷10÷100 cm ÷1000 x1000 x100 x10

6. Area Area is measured in square units e.g. mm 2, cm 2, m 2, km 2

7. Area1cm 1cm 1cm 2 10mm 10mm 100mm 2 1cm = 10mm 1cm 2 = 100mm 2

8. Area1m 1m 1m 2 100cm 100cm 10 000cm 2 1m = 100cm 1m 2 = 10 000cm 2

9. Area1km 1km 1km 2 1000m 1000m 1 000 000m 2 1km = 1000m 1km 2 = 1 000 000m 2

10. Converting units of area mm 2 m2m2m2m2 km 2 10010000 cm 2 1000000 10 x 10 100 x 100 1000 x 1000

11. Converting units of area mm 2 m2m2m2m2 km 2 ÷100 ÷10000 cm 2 ÷1000000 x1000000 x10000x100

12. Converting units of area mm 2 m2m2m2m2 km 2 ÷10 2 ÷100 2 cm 2 ÷1000 2 x1000 2 x100 2 x10 2

13. Volume Volume is measured in cube units e.g. mm 3, cm 3, m 3, km 3

14. Volume10mm10mm 100mm 2 1cm 1cm 1cm 1cm 3 10mm 10mm 10mm 1000mm 3 1cm 2 1cm 1cm

15. Converting units of volume mm 3 1000 cm 3 10 x 10 x 10 10 3

16. Converting units of volume mm 3 m3m3m3m3 km 3 10 3 1000000 cm 3 1000000000 100 x 100 x 100 1000 x 1000 x 1000 100 3 1000 3

17. Converting units of volume mm 3 m3m3m3m3 km 3 ÷ 10 3 cm 3 ÷ 100 3 ÷ 1000 3 x 1000 3 x 100 3 x 10 3

18. Summary: length mmmkm ÷10÷100 cm ÷1000 x1000 x100 x10

19. Summary: area mm 2 m2m2m2m2 km 2 ÷10 2 ÷100 2 cm 2 ÷1000 2 x1000 2 x100 2 x10 2

20. Summary: volume mm 3 m3m3m3m3 km 3 ÷ 10 3 cm 3 ÷ 100 3 ÷ 1000 3 x 1000 3 x 100 3 x 10 3