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

Toán Lớp 6: -1/2 mũ 2 + -2/3 mũ 3 . 81- -18/19 mũ 0 tính

Toán Lớp 6: -1/2 mũ 2 + -2/3 mũ 3 . 81- -18/19 mũ 0
tính

Comments ( 2 )

  1. ( – 1/2 )^2 + ( – 2/3 )^3 . 81 – ( – 18/19 )^0
    = 1/4 + ( – 8)/27 . 81 – 1
    = 1/4 + ( – 24 ) – 1
    = 1/4 + ( – 96 )/4 – 4/4
    = ( – 95 )/4 – 4/4
    = ( – 99 )/4

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