Calculrule
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Image transcription: a photo of the screen of an Android phone with the system's built in calculator open. A popup states: "You are permanently banned from using Calculator", with an "OK" button for the user to press. End transcription.
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So, if you double checked 2*5 five times, how many times did you check total?
2*5*5 = 255 times
So close, but the answer's actually 11:
Checked five times (5) * double checked (2) = 10
Plus one more for that last 5*2 is 11. Or 12 if you double checked that one too.
Seems right to be honest
five