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222-9+11+12:2*14+14 = ? ( )

Toán Lớp 5: 3km245m =-km 5km34m =…km 307m =-km

Toán Lớp 5: 3km245m =….km
5km34m =…km
307m =….km

Comments ( 2 )

  1. 3km245m=3km+245m=3km+0,245km=3,245km
    5km34m=5km+34m=5km+0,034km=5,034km
    307m=307/1000 km=0,307km

  2. Lời giải và giải thích chi tiết:
    $\textit{@Ngốc}$
    $\text{Ta có: 1 m = 0,001}$
    $\text{⇒ 245 m = 0,245 km}$
    $\text{→ 3 km 245 m = 3,245 km}$
    $\text{⇒ 34 m = 0,034}$
    $\text{→ 5 km 34 m = 5,034 km}$
    $\text{⇒ 307 m = 0,307 km}$
    $\text{Vậy, 3 km 245 m = 3,245 km}$
            $\text{5 km 34 m = 5,034 km}$
            $\text{307 m = 0,307 km}$

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222-9+11+12:2*14+14 = ? ( )

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