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

Toán Lớp 6: 307 – [(180:4^0 – 160) : 2^2 + 9] : 2 bằng bao nhiêu v ạ

Toán Lớp 6: 307 – [(180:4^0 – 160) : 2^2 + 9] : 2 bằng bao nhiêu v ạ

Comments ( 2 )

  1. 307 – [(180 : 4^0 – 160) : 2^2 + 9] : 2
    = 307 – [(180 : 1 – 160) : 4 + 9] : 2
    = 307 – [(180 – 160) : 4 + 9] : 2
    = 307 – [20 : 4 + 9] : 2
    = 307 – [5 + 9] : 2
    = 307 – 14 : 2
    = 307 – 7
    = 300
     

  2. 307-[(180:4^0 – 160):2^2 +9]:2
    = 307-[(180:1-160):4+9]:2
    = 307-[(180-160):4+9]:2
    =307-[20:4+9]:2
    = 307-[5+9] : 2
    = 307 – 14:2
    = 307 – 7
    = 300
     

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

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