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

Toán Lớp 5: >;<;= a) 790ha--.79km vuong b) 6090 kg--..6 tan 8kg

Toán Lớp 5: >;<;= a) 790ha.........79km vuong b) 6090 kg..........6 tan 8kg

Comments ( 2 )

  1. a, \text{79 ha < 79 km}^2
    79 km^2 = 790 ha
    b, \text{6090 kg > 6 tấn 8 kg}
    \text{6 tấn 8 kg = 6000 kg + 8 kg = 6008 kg}
    \text{6090 kg > 6008 kg}

  2. a) 790ha=79km^2
    – Vì 1km^2=100ha => 79km^2=79xx100=790ha 
    b) 6090kg>6 tấn 8kg 
    – Vì 6 tấn =6000kg => 6 tấn 8kg=6000+8=6008 ( mà 6090kg>6008 kg) 
    => 6090kg>6 tấn 8kg 
     

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

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