Brain Teasers
No Eights
Can you write down a mathematical expression equaling 24, which uses the same digit three times, and doesn't use the digit 8 ?
Answer
22 + 2Hide Answer Show Answer
What Next?
View a Similar Brain Teaser...
If you become a registered user you can vote on this brain teaser, keep track of which ones you have seen, and even make your own.
Solve a Puzzle
Comments
Dec 21, 2001
or 3*2*2*2
Another one:
3^3-3
3^3-3
Yeah, I got 3 to the third power minus 3 too.
4! + 4-4
4 squared plus 4 plus 4
I got some for each number except 1:
((sqrt(2) * sqrt(2))^2)!
3^3 - 3
(3 + 3/3)!
4! - 4 + 4
(4 + sqrt(4)) * 4
(5 - 5/5)!
(sqrt(5) * sqrt(5))! / 5
((6 / .6) - 6)!
[7 * .7 - .7]!
sqrt(9)^sqrt(9)-sqrt(9)
(sqrt(9) + 9/9)!
9*sqrt(9)-sqrt(9)
(where [x] is floor x--the integer portion of x)
((sqrt(2) * sqrt(2))^2)!
3^3 - 3
(3 + 3/3)!
4! - 4 + 4
(4 + sqrt(4)) * 4
(5 - 5/5)!
(sqrt(5) * sqrt(5))! / 5
((6 / .6) - 6)!
[7 * .7 - .7]!
sqrt(9)^sqrt(9)-sqrt(9)
(sqrt(9) + 9/9)!
9*sqrt(9)-sqrt(9)
(where [x] is floor x--the integer portion of x)
To post a comment, please create an account and sign in.
Follow Braingle!