1. Metric Units of Length millimetres, centimetres, decimetres metres
decametres, hectometres, kilometres

2. mm, cm, dm, m, dam, hm, km Remember how these units are related: ÷ 10
kilometre
÷ 10
hectometre
÷ 10
decametre
x 10
÷ 10
metre
÷ 10
x 10
decimetre
x 10
centimetre
x 10
millimetre
x 10
x 10

3. Try these! For the following 10 questions,
change the measurement given
to the units indicated.

4. Question 1
105 cm = _____mm

5. Question 2
185 cm = _____ km

6. Question 3
1234 dm = _____m

7. Question 4
500 cm = _____km

8. Question 5
75 hm = _____ cm

9. Question 6
1500 mm = _____ km

10. Question 7
25 km = _____cm

11. Question 8
750 dm = _____ dam

12. Question 9
40 dam = _____ cm

13. Question 10
10 mm = _____ dam

14. Review your answers carefully…
Time to correct!
Review your answers carefully…

15. Question 1
105 cm = 1 050mm
centimetre
millimetre
x 10

16. 185 cm = 0.00185 km Question 2 ÷ 10 ÷ 10 ÷ 10 ÷ 10 ÷ 10 kilometre
hectometre
÷ 10
decametre
÷ 10
metre
decimetre
centimetre

17. Question 3
1234 dm = 123.4m
÷ 10
metre
decimetre

18. 500 cm =0.005 km Question 4 ÷ 10 ÷ 10 ÷ 10 ÷ 10 ÷ 10 kilometre
hectometre
÷ 10
decametre
÷ 10
metre
decimetre
centimetre

19. 75 hm = 750 000 cm Question 5 x 10 x 10 x 10 x 10 hectometre decametre
decimetre
x 10
centimetre
x 10
x 10

20. 1500 mm = 0.0015 km Question 6 ÷ 10 ÷ 10 ÷ 10 ÷ 10 ÷ 10 ÷ 10 kilometre
hectometre
÷ 10
decametre
÷ 10
metre
÷ 10
decimetre
centimetre
millimetre

21. 25 km = 2 500 000 cm Question 7 x 10 x 10 x 10 x 10 x 10 kilometre
hectometre
decametre
x 10
metre
x 10
decimetre
x 10
centimetre
x 10
x 10

22. Question 8
750 dm = 7.5 dam
÷ 10
÷ 10
decametre
metre
decimetre

23. 40 dam = 40 000 cm Question 9 x 10 x 10 x 10 decametre metre decimetre
centimetre
x 10
x 10

24. 10 mm = 0.001 dam Question 10 x 10 x 10 x 10 x 10 decametre metre
decimetre
x 10
centimetre
x 10
millimetre
x 10
x 10