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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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a solution

| Comment 2 of 6 |

While finding the best match I found that (9+9)*9 is too high by 1, so we need to subtract 1, which can be written as .9 with a bar over the 9:

           _
(9+9)*9 - .9 = 161

Posted by Charlie on 2023-09-27 08:39:58

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