Question

quantos mm há em (faça notações científicas) 2cm, 3m, 8km, 22dam, 0,03hm, 0,01m

Answer 1

km / dam / hec / m / dc / cm / mm

1 cm = 100 mm = $10^{2}$
1 dc  = 1000 mm = $10^{3}$
1 m = 10000 mm = $10^{4}$
1 hm = 100000 mm = $10^{5}$
1 dam = 1000000 mm = $10^{6}$
1 km = 10000000 mm = $10^{7}$

$2cm = 2*10^{2}mm$
$3 m = 3*10^{4}mm$
$8km = 8*10^{4}mm$
$22dam = 2*10^{6}mm$
$0,03hm = 0,03*10^{5}mm$
$0,1km = 0,1*10^{4}mm$