Tot ex 4vă rog!E mega urgent!Dau coroană +50 puncte
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Răspuns:
Explicație pas cu pas:
100cm-964mm+24cm=1000mm-964mm+240mm=276mm
72dm-450mm+249cm=720cm-45cm+249cm=924cm
1m-1dm-1cm-1mm=1000mm-100mm-10mm-1mm=889mm
1mm+10cm+229mm-187mm=1mm+100mm+229mm-187mm=143mm
74dam+1km+500m=74dam+100dam+50dam=224dam
4km+2hm+15dam+279m=4000m+200m+150m+279m=4629m
116km-2400dam-840hm+2000m=11600dam-2400dam-8400dam+200dam=1000dam
68000m+27500hm+4800dam-1998km=68km+2750km+48km-1998km=868km