Question

1/4 km + 15 m +7 hm = ?m
8264 mmm2 + 3 dm2 + 0.05 dam2 = ? m2
43 m3 + 0.00000km3 + 0.000063 dam3 = ? m3
40 min + 120s + 1 pe 4 h = ?? s

Answer 1

$\frac{1}{4}km+15m+7hm= 0,00025 m + 15 m + 700 m = 715,00025 m$