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calculati an doua miduri 812×(4+5)

Răspuns :

812×(4+5)=812×9=7308

812×(4+5)=812×4+812×5=3248+4060=7308
812x(4+5)=812x9=7308

812x(4+5)=812x4+812x5=3248+4060=7308