Question

va rog! pentru clasa a cincia!!! matematică!!! dau coroana, stele, mulțumire!!!!​

Answer 1

Răspuns:

Explicație pas cu pas:

1000mm=100cm=10dm=1m;   1Km=1000m

a) 15000cm=150m; 380cm=3,80m; 24cm=0,24m; 240dm=24m; 98dm=9,8m;  7,3dm=0,73m; 5000mm=5m; 2070mm=2,07m (2m si 70mm), 810mm=0,81m; 30,2km=30200m (adica 30,2x1000); 0,15km=150m (adica:0,15x1000).

b) 354800mm=3548dm; 5860mm=58,60dm, 52cm=5,2 dm; 4200cm=420dm; 265cm=26,5dm; 4,4cm=0,44 dm, 84m=840dm, 10,5m=105dm; 0,475m=4,75dm

c) 40200mm=4020cm; 2530mm=253cm; 64mm=6,4cm; 120dm=1200cm; 47,5dm=475cm; 3,9 dm=39cm; 18,75m=1875cm; 201m=20100cm; 0,75m=75cm

d) 26m=26000mm; 3,2m=3200mm;0,15m=150mm;350dm=35000mm; 4,8dm=480mm; 0,05dm=5mm; 3200cm=32000mm; 15,5cm=155mm; 1,2cm=12mm.