Preračunavanje mernih jedinica (za sve razrede)

PRERAČUNAVANJE MERNIH JEDINICA

ZADACI ZA VEŽBU
185 dm = ________________________________ mm
0.9 cm = ________________________________ m
800 m = ________________________________ km
0.068 km = ________________________________ dm
12 50 mm = ________________________________ cm
0.5 cm2 = ________________________________m2
2100 m2 = ________________________________ km2
0.92 mm2 = ________________________________ dm2
45 dm2 = ________________________________ cm2
0.012 km2 = ________________________________ mm2
375 m3 = ________________________________ mm3
62.4 cm3 = ________________________________ dm3
0.007 km3 = ________________________________ m3
99.9 mm3 = ________________________________ cm3
5.34 dm3 = ________________________________ km3
355 nm2 = ________________________________ am2
0.00065 m = ________________________________ fm
93.11 Tm2 = ________________________________ μm2
194.5 Gm3 = ________________________________ m3
0.00001 pm3 = ________________________________ Tm3



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ODGOVORI

185 dm = 185 · 100 = 18500 = 1.85·104 mm
0.9 cm = 0.9 : 100 = 0.009=9·10-3 m
800 m = 800 : 1000 = 0.8=8·10-1 km
0.068 km = 0.068 · 10000 = 680=6.8·102 dm
12 50 mm = 1250 : 10 = 125=1.25·102 cm
0.5 cm2 = 0.5 : 100 : 100 = 0.5 : 10000 = 0.00005= 5·10-5 m2
2100 m2 = 2100 : 1000 : 1000 = 2100 : 106 = 0.0021 = 2.1·10-3 km2
0.92 mm2 = 0.92 : 100 : 100 = 0.92 : 10000 = 0.000092=9.2·10-5 dm2
45 dm2 = 45·10·10=4500=4.5·103 cm2
0.012 km2 = 0.012·1000000·1000000=1.2·10-2 ·1012=1.2·1010 mm2
375 m3 = 375·1000·1000·1000=3.75·1011 mm3
62.4 cm3 = 62.4 :10 :10 :10 = 0.0624=6.24·10-2 dm3
0.007 km3 = 0.007·1000·1000·1000=7000000=7·106 m3
99.9 mm3 = 99.9:10:10:10=0.0999=9.99·10-2 cm3
5.34 dm3 = 5.34 : 10000 : 10000 : 10000 =5.34·10-12 km3
355 nm2 = 355·109·109 = 3.55·1020am2 (tablica: nano u ato --> veća u manju)
0.00065 m = 0.00065·1015 fm = 6.5·1011 (tablica: razlika od 100 do 10-15)
93.11 Tm2 = 93.11·1018·1018=9.311·1037 μm2
194.5 Gm3 = 194.5 · 109·109·109 = 1.945·1029 m3
0.00001 pm3 = 0.00001 : 1024 = 10-29 Tm3

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