12 × 913.2 ×70% =
    12 × 913.2 ×70% =
    (70+0)*(70+4)*(70+8)
    (70+0)*(70+4)*(70+8)
    (-1/30)/(2/3-1/10+1/6-2/5)
    9*11/22*(-12)+35.5*4-5.5*4
     2529.021/ 759.7215
    1012.962 - 253.2405 =
    1012.962 × 25% =
    10958.4 - 8520.846 - 1424.592 =
    10958.4 × 13%
    15 × 913.2 ×80%
    10227.84 - 8520.846 - 1329.6192 =
     1329.6192 - 8520.846 - 1519.5648
    10227.84 × 13%
    14 × 913.2 ×80%
    11688.96 - 8520.846 - 2922.24 =
    11688.96 - 8520.846 - 1519.5648 - 2922.24 =
    26.08 × 300 + 696.846 =
    136.521 + 12.645 + 547.68 =

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