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

Toán Lớp 6: 12+3 nhân { 90:[39-(8-5) mũ 2 ]} Giúpp

Toán Lớp 6: 12+3 nhân { 90:[39-(8-5) mũ 2 ]}
Giúpp

Comments ( 2 )

  1. Giải đáp:
     12+3.{90:[39-(8-5)²]}
    =12+3.{90:[39-3²]}
    =12+3.{90:[39-9]}
    =12+3.{90:30}
    =12+3.3
    =12+9
    =21
     

  2. 12+3.{90:[39-(8-5)^2]}
    =12+3.[90:(39-3^2)]
    =12+3.[90:(39-9)]
    =12+3.(90:30)
    =12+3.3
    =12+9
    =21

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

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