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

Toán Lớp 5: 1km2 = … ha. 25 km2 … 250 ha

Toán Lớp 5: 1km2 = … ha.
25 km2 … 250 ha

Comments ( 2 )

  1. 1km^2=100ha
    25km^2=….250ha
    Vì 1km^2=100ha nên 25km^2=25xx100=2500ha
    =>25km^2=10xx250ha

  2. Đổi:
    1km^2 = 100ha
    So sánh:
    25km^2 và 250ha
    – Ta có: 25km^2 = 2500ha
    – Vì: 2500ha > 250ha nên 25km^2 > 250ha
    @ Rin

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