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Naughty Nimble Nines 2 (Posted on 2023-09-27)

Use precisely four 9's, and build an expression that works out to 161.

(I) At least one 9 can be turned upside down to 6.

(II) None of the 9s can be turned around to 6.

See The Solution Submitted by K Sengupta

Rating: 4.0000 (1 votes)

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One more

| Comment 4 of 6 |

9*9*2-1=161

2=!(sqrt9)

1=!2=!(!(sqrt9))

Posted by Ady TZIDON on 2023-09-27 09:09:18

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