Mathematics
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    180*1.5
    tan5.71
    【(300+100)*6.25+1200*20】*2.25*1.25*1.2
    【(300+100)*6.25+1200*20】*1.9
    15+(90+91+92)*0.15
    15+(90+91+93)*0.15
    15+(94+94+93)*0.15
    0.15+(94+94+93)*0.15
    e0.8-(1+㏑0.4)×2.5
    2*1/4
    24×37
    14×35
    14×22
    21×42
    16×22
    16×19
    3×16
    9×4+12
    30+18+39+29+34
    48+39+63

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