1. 8 m > 300 cm + 500 cm (convert 8 m to cm and add the other two)
2. 400 cm - 100 cm > 2 m (convert 2 m to cm and subtract 100 cm from 400 cm)
3. 1000 cm = 500 cm + 500 cm (both sides equal 1000 cm)
4. 125 g + 500 g < 2 kg (convert 2 kg to g and add 125 g and 500 g)
5. 2 kg = 2000 g + 3000 g (both sides equal 5000 g)
6. 600 g + 500 g + 1000 g < 12 kg (convert 12 kg to g and add 600 g, 500 g, and 1000 g)
7. 4 kg - 2 kg = 2000 g (convert 4 kg and 2 kg to g and subtract 2 kg from 4 kg)
8. 3 L = 1000 ml + 1000 ml + 1000 ml (all add up to 3 L)
9. 2.5 L > 1500 ml (convert 2.5 L to ml and compare to 1500 ml)
10. 4 L > 4000 ml (convert 4 L to ml and compare to 4000 ml)