Jawabanmu

2014-08-10T18:14:56+07:00
 hasilnya +

+ × + = +
- × - = +
- × + = -
+ × - = -
1 5 1
Jawaban paling cerdas!
2014-08-10T18:17:17+07:00
(-)×(-)=(+)
(+)×(+)=(+)
(-)×(+)=(-)
(+)×(-)=(-)
2 5 2