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

Toán Lớp 3: x :3=7. X :8=64. X:8=12

Toán Lớp 3: x :3=7. X :8=64. X:8=12

Comments ( 2 )

  1. x : 3=7
         x= 7 × 3
         x=21
    x:8=64
        x=64×8
        x=512
    x:8=12
        x=12×8
        x=96

  2. x :3=7
    x=7×3
    x=21
     ———-
    x:8=64
    x=64×8
    x= 512
    ———–
    x:8=12
    x=12×8
    x=96
    @xin hay nhất

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