Question

8. Transformati:
a) în metri:
30,2 km;
5,04 km;
0,15 km;
15 000 cm;
240 dm;
5000 mm;
380 cm;
98 dm;
2070 mm;
24 cm;
7,3 dm;
810 mm;
b) în centimetri:
40 200 mm;
120 dm;
2530 mm;
47,5 dm;
64 mm;
3,9 dm;
c) în milimetri: 3 200 cm;
26 m;
15,5 cm;
3,2 m;
0.28 cm;
0,15 m.
18,75 m;
201 m;
0,75 m;​

Answer 1

a)30.200m
5040m
150m
150m
24m
5m
3,8m
9,8m
2,07


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Answer 2

Răspuns:

a)in metri

30,2km=30,2×1000=30200 m

5,04km=5,04×1000=5040m

0,15km=0,15×1000=150m

15000cm=15000:100=150m

240dm=240:10=24m

5000mm=5000:1000=5m

380cm=380:100=3,8m

98dm=98:10=9,8m

2070mm=2070:1000=2,07m

24cm=24:100=0,24m

7,3dm=7,3:10=0,73m

810mm=810:1000=0,81m

b)in centimetri

40200mm=40200:10=4020cm

120dm=120×10=1200cm

2530mm=2530:10=253cm

47,5dm=47,5×10=475cm

64mm=64:10=6,4cm

3,9dm=3,9×10=39cm

c)in milimetri

3200cm=3200×10=32000mm

26m=26×1000=26000mm

15,5cm=15,5×10=155mm

3,2m=3,2×1000=3200mm

0,28cm=0,28×1000=280mm

0,15m=0,15×1000=150mm

18,75m=18,75×1000=18750mm

201m=201×10=2010mm

0,75m=0,75×1000=750mm