Răspuns:
1.
4×3=12
5×2=10
9×1=9
7×2=14
6×4=24
2.
4×(4+3)=28
4×(5+2)=28
4×(9+1)=40
4×(7+2)=36
4×(6+4)=40
3.
(4-3)×5=5
(5-2)×5=15
(9-1)×5=40
(7-2)×5=25
(6-4)×5=10