Mathematics
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    55+13= 43+20= 88-93= 92-24= 69-44= 84-24= 45+26= 51+14= 82+11= 72-57= 72-17= 40-16=
    94-78= 82-16= 81-28= 88-22= 74-34= 92-5= 89-10= 84-73= 52-39=
    65-42= 80-24= 75-21= 87-73= 86-94= 66-31= 56-21= 61-19= 82+13=
    500/1000*0.7219+500/100*1.3710
     29+24= 87-21= 93-48=
    34+13= 96-70= 92-80= 99-15= 94-44= 60-55= 68-39= 74-46= 34+18= 29+24= 87-21= 93-48=
    66-47= 93-53= 34+15= 50+13= 18+30= 39+30= 73+10= 51+22= 75-41=
    1.4855-1.1603
    15-9= 75-6= 80-58= 73-29= 75-69= 77-3= 67-41= 86+13= 92-58=
     67-57= 67-17= 35-16=
    800/1000*1.2476+200/1000*0.8113
    50+13= 38+20= 99-93= 87-24= 64-44= 79-24= 40+26= 46+14= 77+11= 67-57= 67-17= 35-16=
    89-78= 97-16= 96-28= 83-22= 69-34= 87-5= 98-10= 99-73= 47-39=
    60-42= 75-24= 70-21= 82-73= 99-94= 61-31= 51-21= 56-19= 77+13=
    -(50/200)*log(2,50/200)-(0/200)*log(2,0/200)-(150/200)*log(2,150/200)
    -(450/800)*log(2,450/800)-(300/800)*log(2,300/800)-(50/800)*log(2,50/800)
     24+22= 82-19= 98-46=
    29+11= 91-68= 97-78= 94-13= 99-42= 55-53= 63-37= 69-44= 29+16= 24+22= 82-19= 98-46=
    61-45= 98-51= 29+13= 45+11= 13+28= 34+28= 68+8= 46+20= 70-39=
    10-7= 70-4= 75-56= 68-27= 70-67= 72-1= 62-39= 81+11= 87-56=

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