A single number, such as 3456, has only one mode and that is itself.
[Impossible].
Assuming each digit only once: 65432 (and no further mathematical operations).
It is: (9-5)*(7-1) = 24
QUESTION* can you only use each number once, or can you use them multiple times?
There can be only 1 combination since, in a combination, the order of the digits does not matter. So, since you must have each digit once and only once, the only combination is 3456.
A single number, such as 3456, has only one mode and that is itself.
If each number can be used only once then there are just four: 2345, 2346, 2456 and 3456. There are no others because the order of the digits does not matter in combinations.
Um... REALLY? If you can only use each number once then it's 9521.
yes but only once for that number
[Impossible].
Assuming each digit only once: 65432 (and no further mathematical operations).
There are only 6 digits and if they can only be used once then there is no way to string them together to make a number which is 7 (or more) digits in length.
It is: (9-5)*(7-1) = 24
3456 + 78091 = 81547
Three hexagons comprise more than 7 lines so you cannot use only seven numbers, once each, to make all the lines add up to the same number!
QUESTION* can you only use each number once, or can you use them multiple times?