30-[-12]=
-23+[-18]=
-12-[-30]=
12-[-30]=
-30-[-12]=
Najlepsze i najszybsze nagrodzę!!!!!!!
30 - (-12) = 30 + 12 = 42-23 + (-18) = (-41)-12 - (-30) = -12 + 30 = 1812- (-30)= 12 + 30 = 42-30 - ( - 12) = -30 + 12 = (-18)
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30 - (-12) = 30 + 12 = 42
-23 + (-18) = (-41)
-12 - (-30) = -12 + 30 = 18
12- (-30)= 12 + 30 = 42
-30 - ( - 12) = -30 + 12 = (-18)