-98+102=4,105-285=-180,58-89=-31,157-1000=-843,-241+20=-221,-3(30+2)=-150,98-85=13, 150-286=-136,58-87-25+78-29=-5,
98-3-100-857+1000=138,
98-92-14+20-8+2-6=0,85-105=-20,
584-989=-405,124+1500=1624,
-1640+220=-1420,58+32-86+3=7,200-982=-782,980-382+68-320+89-325=110,
685-1278-98+473-985+265-98=-1036
78-90-250+985-285-98+585-98+150=977
9 + (-9) = 0
-5 + 10 = 5
10 - (-6) = 16
-5-7 = 12
10 - 12 = -2
3 - 23 = - 20
72 - 80 = -8
32 + (-22 ) = 10
100 - (-1000) = 1100
72 - (-100) = 172
172 - 200 = -38
65 - 92 = -27
-19 + 53 = 34
Pa.
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