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Problemi Simili mit-Tiftix tal-Web

Sehem

8-\left(-1-3+7\right)-9+15-2
Żid -5 u 4 biex tikseb -1.
8-\left(-4+7\right)-9+15-2
Naqqas 3 minn -1 biex tikseb -4.
8-3-9+15-2
Żid -4 u 7 biex tikseb 3.
5-9+15-2
Naqqas 3 minn 8 biex tikseb 5.
-4+15-2
Naqqas 9 minn 5 biex tikseb -4.
11-2
Żid -4 u 15 biex tikseb 11.
9
Naqqas 2 minn 11 biex tikseb 9.