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

Toán Lớp 6: tính nhanh 115+(-68)+(-15)+(-132) +1000

Toán Lớp 6: tính nhanh
115+(-68)+(-15)+(-132) +1000

Comments ( 2 )

  1. =[115+(-15)]+[(-68)+(-132)]+1000
    =100+(-200)+1000
    =(-100)+1000
    =900
     

  2. Answer
    115 + (-68) + (-15) + (-132) + 1000
    = 115 – 68 – 15 – 132 + 1000
    = (115 – 15) – (132 + 68) + 1000
    = 100 – 200 + 1000
    = -100 + 1000
    = 900

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