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

Toán Lớp 5: 5m 2dm =…m 81 m 27km =… km

Toán Lớp 5: 5m 2dm =…m
81 m 27km =… km

Comments ( 2 )

  1. 5m 2dm =5,2…m                                        vì 2dm =0,2 m
    81 m 27km =..27,81. km                                                 vì 81m=0,081
     

  2. 5 m 2 dm = 5 , 2 m
    vì 1 dm = 0 , 1 m
    81 m 27 km = 27 , 027 km
    vì 1 m = 0 , 001 km 
     

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

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