Am i being thick?

[islandlassie]

Was just watching countdown

588

50,10,4,9,1,100

NONE of them got it!!!

Please tell me everyone else can see it?!!!

50x10 = 500
+100 = 600
-4 = 596
-9 =587
+1 = 588!!!!!!

No, you're right, it seems pretty blindingly obvious (did it in a few seconds without looking at your suggestion)