Mathematics
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    81-45+36
    54-21-18
    54-21-18
    (35+37)/8
    81/9+45
    92-32/8
    35/5+18
    54-6*8
    (32+24)/8
    (4+5)*5
    16/(24-16)
    32+(41-9)
    (98-49)/7
    3*6+22
    76-4/2
    15+28/7
    (72-18)/9
    (72-18)/8
    20+48/6
    (4+5)*7

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