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

Toán Lớp 2: tìm x x – 26 = 75 – 17 x + 342 = 536 x – 789 = 221

Toán Lớp 2: tìm x
x – 26 = 75 – 17
x + 342 = 536
x – 789 = 221

Comments ( 2 )

  1. x – 26 = 75 – 17
    x – 26 = 58
           x  = 58 + 26
           x   = 84
    x + 342 = 536
           x    = 536 – 342
           x     = 194
    x – 789 = 221
          x    = 221 + 789
          x    = 1010
    #nocopy
    Xin hay nhất cho nhóm !

  2. $a) x – 26 = 75 – 17$
    $⇒x – 26 = 58$
    $⇒x = 58 + 26$
    $⇒x = 84$
    $b) x + 342 = 536$
    $⇒x = 536 – 342$
    $⇒x = 194$
    $c) x – 789 = 221$
    $⇒x = 221 + 789$
    $⇒x = 1010$
     

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