Odpowiedź :
8 : 2 +89 +34 +21 - 76 - 3 +19 - 7 +6 +2 +1 - 5 x 8 = 4+89+34 +21 -76 - 3 +19 - 7 +6 +2 +1 - 40=148-76 - 3 +19 - 7 +6 +2 +1 - 40=69+19 - 7 +6 +2 +1 - 40=90-40=50
8 : 2 +89 +34 +21 - 76 - 3 +19 - 7 +6 +2 +1 - 5 x 8 = 4+89+34 +21 -76 - 3 +19 - 7 +6 +2 +1 - 40=148-76 - 3 +19 - 7 +6 +2 +1 - 40=69+19 - 7 +6 +2 +1 - 40=90-40=50