Directions: Combine the following units of measurement. Be sure to convert unlike units to like units before combining. Use an online calculator if needed.

1. 40mm + 50mm =

2. 68mg + 57g =

3. 45L + 34mL =

4. 78km + 33m =

5. 67cg + 23g =

6. 34km + 89m =

7. 72cm + 88mm =

8. 121L + 42cL =

9. 156cg + 38mg =

10. 56kg + 333mg =

11. 31km 1/3m + 82km 1/6m =

12. 48m 50cm + 17m 281 1/2cm =

13. 97L 3/4mL + 44L 2/3mL =

14. 26km 5/9mm + 64km 1/5mm =

15. 27Kg 1/4g + 67Kg 1/3g =

16. 30kL 1/3mL + 3kL 1mL =

17. 87kg 1024mg + 23kg 237mg =

18. 83L 1/3 cL + 22L 1/6cL =

19. 93kg 1/5g + 29kg 1/3g =

20. 32m 572mm + 78m 2/7mm =