Zadanie 3 – Zadania utrwalające,strona 83,Szkoła podstawowa,klasa 4 (podręcznik)

Zamień na:

a) centymetry: 2 dm, 5 m 2 cm, 300 mm, 1m 4 dm

b) metry: 60 dm, 2000 mm, 3 km, 2 km 16 m

c) milimetry: 1 cm, 3 cm, 4 dm, 7 m

d) kilometry: 1000 m, 7000 m, 10000 m, 30000 m

 

Odpowiedź:

a)

2 dm = 2 x 10 cm = 20 cm

5 m 2 cm = 5 x 100 cm  + 2 cm = 500 cm  + 2 cm = 502 cm

300 mm = 300 : 10 cm = 30 cm

1 m 4 dm = 100 cm + 4 x 10 cm = 140 cm

 

b)

60 dm = 60 : 10 m = 6 m

2000 mm = 2000 : 1000 mm = 2 m

3 km = 3 x 1000 m  = 3000 m

2 km 16 m = 2 x 1000 m + 16 m = 2016 m

 

c)

1 cm = 10 mm

3 cm = 3 x 10 mm = 30 mm

4 dm = 4 x 100 mm = 400 mm

7 m = 7 x 1000 mm = 7000 mm

 

d)

1000 m = 1 km

7000 m = 7000 : 1000 km = 7 km

10000 m = 10000 : 1000 km = 10 km

30000 m = 30000 : 1000 km = 30 km

 

 

 

Podpowiedź:

1 dm = 10 cm

1 m = 100 cm

100 mm = 10 cm

10 mm = 1 cm

1 dm = 0.1 m

10 dm = 1 m

1000 mm = 1 m

1 km = 1000 m

1 cm = 10 mm

1 dm = 100 mm

1 m = 1000 mm