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

Toán Lớp 6: 245-32+(-145)+(-268) bằng bao nhiệu ạ?

Toán Lớp 6: 245-32+(-145)+(-268) bằng bao nhiệu ạ?

Comments ( 2 )

  1. 245 – 32 + ( -145 ) + ( -268 )
    = 245 – 32 – 145 – 268
    = ( 245 – 145 ) – ( 32 + 268 )
    = 100 – 300
    = -200
     

  2. 245 – 32 + (-145) + (-268)
    =245 – 32 – 145 – 268
    =(245-145) +(-32 – 268)
    =100 + (-300)
    =100 – 300
    =-200 

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

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