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812 - 4 × {6 × (61 - 3600 ÷ 12 ÷ 30)}÷9

Răspuns :

812-4×{6×(61-300÷30)}÷9

812-4×{6×(61-10)}÷9


812-4×(6×51)÷9

812-4×306÷9

812-1224÷9

812-136=676