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

Toán Lớp 5: 20 km =. 20050 m 3kg 15g= 3015g

Toán Lớp 5: 20 km …………. 20050 m
3kg 15g………… 3015g

Comments ( 2 )

  1. 20km…20050m
    Ta có:
    20km=20000m
    Vậy 20km<20050m
    3kg15g…3015g
    Ta có:
    3kg=3000g
    suy ra 3kg15g=3015g
    Vậy 3kg15g=3015g

  2. 20 km < 20050 m
    ⇒ 20km = 20000m < 20050m
    3kg 15g =  3015g
    ⇒ 3kg 15g = 3015g
     

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