820m+1km+2hm=x dam
*820m=82dam
*1km=100dam
*2hm=20dam
82+100+20=x
82+120=x
202=x
x=202
Răspuns 202 dam
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5 hm+6 dam+80 dm=x m
*5hm=500m
*6dam=60m
*80dm=8m
500+60+8=568
Răspuns 568 m
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62 m+3 dm+4 cm=x mm
*62m=62000mm
*3dm=300mm
*4cm=40mm
62000+300+40=62340
Răspuns 62340 mm