34, 38, and 39. You cannot combine numbers like 12+34=36. Each number is used by itself. I figured out all 1-40, except these 3. Thanks. Can only use +, - , *, and /.
2007-10-19 06:04:15 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
for example, you can use exponents too. (4^2)+1+3=20. Exponents are ok, not factorial, eg.
2007-10-19 06:50:46 · update #1
Thanks so far for the quick responses! However, I do not think decimal places are allowed, I will ask. Let's assume not. If they are, I have all 3 I needed, but I do not think they are.
2007-10-19 07:32:30 · update #2
Zaphod is best so far, but used decimals. Try NOT using decimals.
2007-10-19 07:34:12 · update #3
Can you use a decimal point?
(And I bet you used parentheses somewhere too.)
39 = 4/.1 - 3 + 2
38 = 3/.1 + 2*4
34 = 4/.1 - 3*2
Actually, this isn't cheating, as you said I could use /.
which I did (a slash followed by a period)
2007-10-19 06:38:57 · answer #1 · answered by Scott R 6 · 0⤊ 0⤋
I don't see how it is possible. Using ONLY 1,2,3,4 ONCE and ONLY +, -, *, /, the largest number we can obtain is (4+1) * 3 * 2 which is only 30. Something is missing in your description of the question.
2007-10-19 06:33:48 · answer #2 · answered by John H 4 · 0⤊ 0⤋
34=3/.(2-1)+4
that is
2-1=1
.1=1/10
3/(1/10)=30
30+4=34
2007-10-19 07:05:21 · answer #3 · answered by iyiogrenci 6 · 0⤊ 1⤋
you can't square numbers either?
can you give us an example? like how you did 40 or something..
it would be helpful =]
2007-10-19 06:37:42 · answer #4 · answered by Mariee 4 · 0⤊ 0⤋
Unfortunately, that doesn't seem to be possible.
2007-10-19 06:41:23 · answer #5 · answered by Brent 2 · 0⤊ 0⤋