Mathematics
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    5500*3
    (6.4+(9.6-6.4)÷(50000-10000)×(12571.87-10000))×1.0×0.9
    (22.4+(60-22.4)÷(50000-10000)×(24181.63-10000))×1.0×1.2
    (22.4+(60-22.4)÷(50000-10000)×(24181.63-10000)×1.0×1.2
    (17.5×2.5+1.5×16.8+7.0×19.3+1.5×17.8+12.7×18.5)/25.2=
    5924.80×5.87+280.82×26.5+397.17×21.5+93.88×16.12-1.25(57.66×26.51+84.24×24.71+695.17×19.91+220.99×16.23+3963.35×6.75)=
    1.6/1.64
    280.82×18.73+397.17×13.73+1878.40×3.13+93.88×8.35-57.66×18.74-84.24×16.94-695.17×12.14-220.99×8.46-1591.85×3.56=
    156.46×7.73+6.40×7.73×7.73
    104.48×7.73+17.92×7.73×7.73
    60*21/40
    97.209485*0.7
    (88+(160-88)÷(500000-100000)×(286176.98-100000))×1.0×0.8
    70*1.5
    (60+(88-60)÷(100000-50000)×(86155.45-50000))×1.0×0.8
    104.48+8.5×3.04×2.26+10×2.26=
    156.46+8.5×0.33×2.26+10×2.26=
    1.5×17.8×3.04+2×6.7×1.74=
    1.5×17.8×2.84+2×8.7×1.68=
    2×8.7×1.68=

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