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

Toán Lớp 6: 3.5^2 – 27 :3^2 + 5^2.4 – 18 :3^2

Toán Lớp 6: 3.5^2 – 27 :3^2 + 5^2.4 – 18 :3^2

Comments ( 2 )

  1. 3 . 5^2 – 27 : 3^2 + 5^2 . 4 – 18 : 3^2
    = 3 . 25 – 27 : 9 + 25 . 4 – 18 : 9
    = 75 – 3 + 100 – 9
    = 72 + 100 – 9
    = 172 – 9
    = 163
    #dtkc

  2. Giải đáp:
     
    Lời giải và giải thích chi tiết:
    3.5^2 – 27 :3^2 + 5^2.4 – 18 :3^2
    =(3+4) . $5^{2}$ – (27+18) : $3^{2}$ 
    =7. 25 – 45:9
    =175 – 5
    =170

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