Odpowiedzi

2010-03-30T13:56:02+02:00
-16 +48=32
16+(-32)=-16
-2,5+(-7,5)=-10
-2,5+12,5=10
2,5+(-5)=-2,5
-1/3 +1/3 = 0
1/3+(-4/3)=-1
-1/3+2/3=1/3
2010-03-30T13:56:37+02:00
-16 +48=32
16+(-32)=-16
-2,5+(-7,5)=-10
-2,5+12,5=10
2,5+(-5)=-2,5
-1/3 +1/3 = 0
1/3+(-1 i 1/3)=-1
-1/3+2/3=1/3