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

Toán Lớp 6: 40 + (139 – 172 + 99) – (139 + 199 – 127) Cho em bước nhanh nhất

Toán Lớp 6: 40 + (139 – 172 + 99) – (139 + 199 – 127)
Cho em bước nhanh nhất

Comments ( 2 )

  1. 40 + ( 139 – 172 + 99 ) – ( 139 + 199 – 127 )
    = 40 + 139 – 172 + 99 – 139 – 199 + 127
    = 40 + ( 139 – 139 ) + ( 99 – 199 ) – ( 172 – 127 )
    = 40 + 0 + ( – 100 ) – 45
    = ( – 60 ) – 45
    = – 105

  2. Answer
    40 + (139 – 172 + 99) – (139 + 199 – 127)
    = 40 + 139 – 172 + 99 – 139 – 199 + 127
    = 40 + (139 – 139) + (99 – 199) – (172 – 127)
    = 40 + 0 – 100 – 45
    = -60 – 45
    = -105 

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