Mathematics
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    (1.5 + 2.5 + 3.5 + 4.5) / 15 / 4
    1/(0.21+0.15) + 1/(0.07+0.15) + 1/(0.21+0.07+0.15)
    1/(0.03+0.02) + 1/(0.2+0.02) + 1/(0.03+0.2+0.02)
    1/(0.28+0.27) + 1/(0.14+0.27) + 1/(0.28+0.14+0.27)
    1/3.39
     (1.7 + 0.6 + 4 + 2.4 + 5.7 + 6.5 + 0.7 + 0.1 + 9.4 + 2.8) / 10
    e^1/1152
    40%*70%*70%=
    40%*70%*70%+(1-40%)*70%*70%+40%*2*70%*(1-70%)=
    (1-40%)*70%=
    1+1.1+1.2+1.3+1.4+1.5+1.6+1.7+1.8+1.9
    1.23456789×1.23456789-1.23456788×1.2345679 1.2345679012345679012345679012345679×8.1 (0.25+0.5+0.75+1+1.25-1.5-1.75)÷(5×0.3-1.3)
    12-6-3-1.5-0.75-0.375-0.1875-0.1875 (0.1×0.1+0.2×0.2+0.3×0.3+0.4×0.4)÷1.5 (2005×2006×2007×2008+1)÷(2006×2007-1) 0.01÷[0.02÷(0.03÷0.06)]+0.05÷[0.07÷(0.15÷0.21)]
    2.32323232323232323×5.55555555555555555 1.99999999999999999×7.99999999999999999 (0.1+0.2+0.3)÷(0.1×0.1×0.1+0.2×0.2×0.2+0.3×0.3×0.3) 90 - 45 - 22.5 - 11.25 - 5.625 - 2.8125 - 1.40625
    arctan(-1/2)
    √5×3
    sqrt(8+4√3)
    √8+4√√3
    √8+4√3
    9.99999999×9.87654321+9.8765432 7777777777777777×3333333333333333 (2×2003+4)÷(2003×2002-2004×2001) 17+18.7+18.87+18.887+18.8887+18.88887+18.888887 2008+(4004×4005-2002×2003)÷(2×3004-1) 1+2.7+3.07+4.007+5.0007+6.00007+7.000007 19÷4+19÷0.4+19÷0.04+19÷0.004+19÷0.0004

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