Wpisz odpowiednie liczby: 1 cm2= 9 cm2= 5,2 cm2= 1 dm2 = 17dm2= cm2 4,3 dm2= cm2 1m2= 7m2= 2,5m2= 1km2= 50km2= 8,

1 cm^2 = 100 mm^2

9 cm^2 = 900 mm^2

5.2 cm^2 = 520 mm^2

1 dm^2 = 100 cm^2

17 dm^2 = 1700 cm^2

4.3 dm^2 = 430 cm^2

1 m^2 = 10000 cm^2

7 m^2 = 70000 cm^2

2.5 m^2 = 25000 cm^2

1 km^2 = 1000000 m^2

50 km^2 = 50000000 m^2

8.5 km^2 = 8500000 m^2

Step-by-step explanation:

1 cm = 10 mm

1 = 10×10 = 100

9 = 9×100 = 900

5.2   = 5.20×100 = 520

1 dm = 10 cm

1 = 10×10 = 100

17 = 17× 100 = 1700

4.3 = 4.3 × 100 = 430

1 m = 100 cm

1 = 100×100 = 10000

7 = 7×10000   = 70000

2.5 = 2.5×10000 = 25000

1 km = 1000 m

1 = 1000×1000 = 1000000

50 = 50×1000000 = 50000000

8.5 = 8.5×1000000 = 8500000

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5