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

Toán Lớp 5: S=1/2+1/3+1/4+1/6+1/8+1/12+1/16+1/24+…+1/256+1/384

Toán Lớp 5: S=1/2+1/3+1/4+1/6+1/8+1/12+1/16+1/24+…+1/256+1/384

Comments ( 1 )

  1. tính nhanh
    1/2+1/4+1/8+…+1/148+1/256.
    tính bằng cách thuận tiện nhất
    1/3+1/6+1/12+…+1/192+1/384.
    tính bằng cách hợp lý
    2/1*3+2/5*7+…+2/101*99

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

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