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

Toán Lớp 6: Các bn giải dùm mik nha :197197.196-196196.197

Toán Lớp 6: Các bn giải dùm mik nha :197197.196-196196.197

Comments ( 1 )

  1. 197197 . 196 – 196196 . 197
    = 197197 . 196 – 196196 . (196 + 1)
    = 197197 . 196 – 196196 . 196 – 196196
    = 196 . (197197 – 196196) – 196196
    = 196 . 1001 – 196196
    = 196 . 1001 – 196 . 1001
    = 0

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