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

Toán Lớp 5: 5 tấn 3 kg=. –.kg 3,45 ha=. — m2 7 m 16 mm=. –m 3/4= –..m2

Toán Lớp 5: 5 tấn 3 kg=. ………kg
3,45 ha=. …….. m2
7 m 16 mm=. ……..m
3/4= ……….m2

Comments ( 2 )

  1. 5 tấn 3 kg=. ………kg
    ->5tấn= 5000kg, 3kg=3kg(5000+3)
    =>5 tấn3kg=5003kg
    3,45 ha=. …….. m2
    ->1ha=10.000 m²
    =>3,45ha=34,500m²
    7 m 16 mm=. ……..m
    ->16mm=0,016 
    =>7m16mm=7,016
    3/4= ……….m2
    $\frac{3}{4}$ x10000
     =>$\frac{3}{4}$ ha=7500m²
    Melanie
    Good luck!

  2. # chớp#  
    5 tấn 3 kg = 5003 kg
    – > Vì 1 tấn = 1000 kg -> 5 tấn = 5000 kg -> 5000+ 3 = 5003  
    3, 45 ha = 34500 m^2  
    -> Vì 1 ha = 10 000 m ^2   -> 3, 45 = 34500 m ^2
    7m 16 mm = 7, 016 m  
    1m =  1000 mm -> 7m = 7000mm -> 7000 + 16 = 7016 mm = 7, 016 m
    3/ 4 ha= 7500 m ^2  
    -> Vì 3/ 4 x    10 000 = 7500 -> 3/4 ha= 7500 m^2  
     

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