Răspuns:
Explicație pas cu pas:
1/2 g = 0,5 g = 500 mg
1/4 t = 1000 kg/4 = 250 kg
3/4 kg = 1000 g x 3/4 = 750 g
2 1/2 kg = 2,5 kg = 2500 g
8 1/2 kg = 8500 g
1 3/4 kg = 1750 g
5 1/2 t = 5,5 t = 5500 kg
12 1/2 t = 12500 kg
2 1/4 t = 2250 kg
____________________
3/4 h = 60 x 3/4 = 45 min
1/2 min = 60/2 = 30 s
1/4 d = 24/4 = 6 h
4 1/2 min = 4 x 60 + 60/2 = 240 + 30 = 270 s
3 1/2 d = 3 x 24 + 24/2 = 72 + 12 = 84 h
1 3/4 h = 60 + 45 = 105 min
