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

Toán Lớp 5: 76502-X=10515:15 Xx34=Xx678 bài 2 (25915+3550:25):71 B1200:50-200:50 C (Ax1-A:1)x2x4x6x4567

Toán Lớp 5: 76502-X=10515:15
Xx34=Xx678
bài 2
(25915+3550:25):71 B1200:50-200:50 C (Ax1-A:1)x2x4x6x4567

Comments ( 1 )

  1. Câu 1 :
    76502- X =10515 : 15
    76502 – X = 701
    X = 76502 – 701
    X = 75801
    X x 34 = X x 678
    X x X = 34 x 678
    X = 34 x 678
    X = 23052
    Câu 2 :
    ( 25915 + 3550 : 25 ) : 71
    = ( 25915 + 142 ) : 71
    = 26057 : 71
    = 361
    1200 : 50 – 200 : 50
    = 24 – 4
    = 20
    (Ax1-A:1)x2x4x6x4567
    = ( A – A ) x 2 x 4 x 6 x 4567
    = 0 x 2 x 4 x 6 x 4567
    = 0

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