Campeanumary1981 Campeanumary1981 19-02-2020 Matematică a fost răspuns a) a + (864 - 864:3):3 = 864b) a + (515:5X3 - 324:3+ 3 x 28) = 532c) a - (612:3+ 1228:4 - 1000:5 X 2) = 278d) (635 + 749:7 +678: 3) – (312:3+628:4 +510:5) - a = 578va rog ajutatima