1.4 1/2 m2=........cm2. 2.0,5 km=.........cm. 3. 20 ton=.......kg. 4. 1.000 kg=...........pon. 5. 1.000 ons=........hg

1. 4,5 m² =... cm²
1 m² = 10.000cm²
4,5 m² = 4,5 × 10.000
= 45.000 cm²

2. 0,5 km = ... cm
1 km = 100.000 cm
0,5 km = 0,5 × 100.000
= 50.000 cm

3. 20 ton = ... kg
1 ton = 100 kg
20 ton = 20 × 100
= 20.000 kg

4. 1000 kg = ... pon
1 kg = 2 pon
1000 kg = 1000 × 2
= 2000 pon

5. 1000 ons = ... hg
1 ons = 1 hg
1000 ons = 1000 × 1
= 1000 hg