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Sa se efectueze:
7m+0,15km+30000cm=? Dam
145m+3,2km+7534dm=...?hm
5,42005km+3900mm+3,2m=...cm
5,4m+0,007hm+26cm=...dm

Răspuns :

Alexandra450
1) 0,7 dam+15 dam+30 dam=45,7 dam 2) 1,45hm+32 hm+ 7,534 hm= 40,984 hm 3) 542005 cm+390 cm+320cm= 542715 cm 4) 54 dm+ 7 dm+ 2,6 dm=63,6 dm

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