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Funny way to divide by seven (Posted on 2018-01-12) Difficulty: 2 of 5
"This special big number of mine allows me to get a correct answer of dividing it by 7 by simply erasing its second digit..." - declared Danny.
After a minute or two his father, W.G. quipped: "I know what digit was erased!"

Do you?
Please post your reasoning.

See The Solution Submitted by Ady TZIDON    
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Comments: ( Back to comment list | You must be logged in to post comments.)
another one | Comment 2 of 3 |
35 works if you squint.
  Posted by xdog on 2018-01-13 12:29:37
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