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

Toán Lớp 6: {137 – (75 : 52 + (14.3 – 62)]}: 24 giúp mình ạ

Toán Lớp 6: {137 – (75 : 52 + (14.3 – 62)]}: 24 giúp mình ạ

Comments ( 2 )

  1. {137-[75:52+(14.3-62)]}:24
    ={137-[75:52+(42-62)]}:24
    ={137-[75/25-20]}:24
    ={137-(-17)}:24
    ={137+17}:24
    =154:24
    =154/24=77/12

  2. {137 – [75 : 52 + (14.3 – 62)]} : 24
    = {137 – [75 : 52 + (42 – 62)]} : 24
    = {137 – [(75)/(52) – 20]} : 24
    = {137 – (-17)} : 24
    = {137 + 17} : 24
    = 154 : 24
    = (77)/(12)

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