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

Toán Lớp 4: x + x + x + x + x = 100 x bằng ?

Toán Lớp 4: x + x + x + x + x = 100
x bằng ?

Comments ( 2 )

  1. x + x + x + x + x = 100
    x xx1+x xx1+x xx1+x xx1+x xx1=100
    x xx(1+1+1+1+1)=100
    x xx5=100
    x=100:5
    x=20
     

  2. x+x+x+x+x=100
    =>5x=100
    =>x=100/5
    =>x=20
    Vậy x=20

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

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