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Calculati: a)5 h 46 min+2 h 44 min=...h...min
b)123 m³+15370dm³+0,089049 dam³+6,43 m³=.....m³
c)320 m² + [tex] \frac{1}{2} [/tex] ha +42, 25 a + [tex] \frac{1}{4} [/tex]a=....m²


Răspuns :

a)5 h 46 min+2 h 44 min=7h90min=8h30min

b)123 m³+15370dm³+0,089049 dam³+6,43 m³=123.m³+15,37m³+89,049m³+6,43m³=233,849m³

c)320 m² +  ha +42, 25 a + a=320m
²+0,5x10.000m²+42,25x100m²+0,25x100m²=320m²+5000m²+4225m²+25m²=9570m²