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

Toán Lớp 6: b) {[(37 + 13) : 5] – 45 : 5} . 7

Toán Lớp 6: b) {[(37 + 13) : 5] – 45 : 5} . 7

Comments ( 2 )

  1. {[(37+13):5]– 45:5}.7
    ={[50:5]– 9}.7
    ={10-9).7
    =1.7
    =7
     

  2. b) {[(37 + 13) : 5] – 45 : 5} . 7
    = {[50 : 5] – 45 : 5} . 7 
    = (10 – 45 : 5) . 7
    = (10 – 9) . 7 = 1 . 7 = 7.

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

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