Question

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 + $\frac{1}{2}$ ha +42, 25 a + $\frac{1}{4}$a=....m²

Answer 1

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=320m²+0,5x10.000m²+42,25x100m²+0,25x100m²=320m²+5000m²+4225m²+25m²=9570m²