10 cm=……dm 10000m=……..km 100cm=……dm 230cm=………dm 10dm=………m 400km=……..m

2 bình luận về “10 cm=……dm 10000m=……..km 100cm=……dm 230cm=………dm 10dm=………m 400km=……..m”

1. $\text{10cm = 10 : 10 = 1dm}$

   $\text{100cm = 100 : 10 = 10dm}$

   $\text{10dm = 10 : 10 = 1m}$

   $\text{10000m = 10000 : 1000 =  10km}$

   $\text{230cm = 230 : 10 = 23dm}$

   $\text{400km = 400 × 1000 = 400000m}$

   Trả lời
2. 10 cm = 1 dm

   => 1 dm = 10 cm

   => 1 cm = 0,1 dm

   ———–

   100 cm = 10 dm

   => 1 dm = 10 cm

   => 10 cm = 0,1 dm

   ———–

   10 dm = 1 m

   => 1 m = 10 dm

   => 10 dm = 1 m

   ———–

   10000 m = 10 km

   => 1 km = 1000 m

   => 1 m = 0,001 km

   ———–

   230 cm = 23 dm

   => 1 dm = 10 cm

   => 1 cm = 0,1 dm

   ———–

   400 km = 400000 m

   => 1 km = 1000 m

   => 1 m = 0,001 km

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   Trả lời