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6. Completează egalităţile: 9-3 -1 = 9-1-3 = 9-1-3 7 1 H 5=7-5-1 =7-1-5=7-1-5 5-3-2=5 -2-3 = 5-3-2 8 - 2 - 4 = 8-4-2=8-2-4 = 8-4-2​