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Ajutati-ma , dau coroana :
a) a x b = 12
b) ( a + 2) x (b - 1) = 12


Răspuns :

a) 2×6=12
b) (4+2)×(3-1)=12
6×2=12
AXB=12
3X4=12
2X6=12
1X12=12
A+2)X(B-1)=12
1+2)X(5-1)=12
0+2)X(7-1)=12