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

Toán Lớp 6: 152-(73-48)+(30-127) TÍNH NHANH

Toán Lớp 6: 152-(73-48)+(30-127) TÍNH NHANH

Comments ( 2 )

  1. 152 – (73 – 48) + (30 – 127) = 152 – 73 + 48 + 30 – 127
                                                  = (152 + 48) – (73 – 127) + 30
                                                  = 100 – 100 + 30
                                                  = 0 + 30
                                                  = 30
     

  2. 152-(73-48)+(30-127)
    =152-73+48+30-127
    =(152+48+30)+(-73-127)
    =230+(-200)
    =30
     

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

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