hahdbeh38
hahdbeh38
20-11-2017
Mathematics
contestada
please help!!!!! I don't know
Respuesta :
kareenadeah
kareenadeah
20-11-2017
I think the answer is B
1+-2 = -1
-4+6=2
3+-2=1
5+4=9
-1 2
1 9
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