2,87 km = m 845g= kg 1,68m2= cm2 45ha 120m2= ha

2 bình luận về “2,87 km = m 845g= kg 1,68m2= cm2 45ha 120m2= ha”

1. 2,87km = 2,87 × 1000 = 2870m (1km = 1000m)

   845g = 845 : 1000 = 0,845kg (1g = 0,001kg)

   1,68m^2 = 1,68 × 10000 = 1680cm^2 (1m^2 = 10000cm^2)

   45ha 120m^2 = 45 + 120 : 10000 = 45,012ha (1m = 0,0001ha)

   Trả lời
2. $2,87km=2870m\Rightarrow (1km=1000)$

   $1,68m^2=16800\Rightarrow (1$ $m^2=10000$ $c{m}^2)$
   $845g=0,845kg\Rightarrow (1g=0,001kg)$

   $45ha$ $120m^2=45,012ha\Rightarrow (1ha=10000$ $m^2)$

   Chúc bn hc tốt!~

    

   Trả lời