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

Toán Lớp 5: 7ha = -m2 117ha =…m2 3/4ha =-m2 3km2 =-ha 24km2 = -.ha 1/2km2 =…ha 500 000m2 =…ha 3400ha =…km2 7000ha-km2

Toán Lớp 5: 7ha = ….m2
117ha =…m2
3/4ha =….m2
3km2 =….ha
24km2 = …..ha
1/2km2 =…ha
500 000m2 =…ha
3400ha =…km2
7000ha….km2

Comments ( 2 )

  1. Giải đáp:
     7ha= 70000 m²
    117ha= 1170000 m²
    3/4ha =7500 m²
     3km² = 30000 ha
    24km² = 240000 ha
    1/2km² =50 ha
    500 000m2 =50 ha
    3400ha =34 km²
    7000ha=70km2

  2. 7ha = 70000m²
    117ha = 1170000m²
    3/4ha = 7500m²
    3km² = 300 ha
    24km²= 2400ha
    1/2km² = 50 ha
    500 000m² = 50ha
    3400ha = 34km²
    7000ha = 70km²

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