Răspuns:
10 10 10 10 10 10
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km hm dam m dm cm mm
10^2 10^2 10^2 10^2 10^2 10^2
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km^2 hm^2 dam^2 m^2 dm^2 cm^2; mm^2
ex:
1) 5 km =5*10*10 =5*100 =500 dam
2) 5km^2 =5*10^2*10^2 =5*10^4 =5*10000=50000dam^2
Explicație pas cu pas: