\(\dfrac{9}{250}\)  = \(\dfrac{36}{1000}\) = 0,036

1

7 ha : \(\dfrac{7}{10000}\) m²

24000 dm² = 240m²

7ha16m² = \(7\dfrac{16}{10000}\) m²

48dm² = \(\dfrac{48}{100}\) m²

853 cm² = \(\dfrac{853}{10000}\) m²

32 dam² = 3200 m²

9 m² 5dm² = \(9\dfrac{5}{100}\) m²

25 dm² = \(\dfrac{25}{100}\)

5078m=5,078 km         2567kg=2,567tấn

12m9dm=12,9m        8kg28g=8,028kg

34km35m=34,035km     2081m=2,081hm

3 x 3 = 9

3 x 4 = 12

6 x 7 = 42

8 x 9 = 72

8 x 2 = 16