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

Toán Lớp 5: 2,32+x=14,32 X+23,1=31,2+3,56 Hai câu nha

Toán Lớp 5: 2,32+x=14,32
X+23,1=31,2+3,56
Hai câu nha

Comments ( 2 )

  1. a) 2,32 + x = 14,32
                   x = 14,32 – 2,32
                   x = 12
    b) x + 23,1 = 31,2 + 3,56
        x + 23,1 = 34,76
        x            = 34,76 – 23,1
        x            = 11,66
     

  2. 2,32+x=14,32
    x=14,32-2,32
    x=12
    —————–
    x+23,1=31,2+3,56
    x+23,1=34,76
    x=34,76-23,1
    x=11,66
     

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