26
Impossible, as there are not enough numbers to cover all squares.
28
I'll get back to you on 8-5-09.
2x2=4
26
Impossible, as there are not enough numbers to cover all squares.
20, 4 and 2 if you add them. 13, 2 and 1 if you multiply them.
28
0.1538
26
Since there are 6 numbers that equal 26 to choose from, there are 6 to choose from for the first number, 5 to choose from for the second number, 4 to choose from for the third number, and so on. Therefore there are 6*5*4*3*2*1 ways or 6! or 720.
1 x 104, 2 x 52, 4 x 26, 8 x 13.
(6 + 4 + 3)*2 = 26
These numbers: 1, 2, 4, 13, 26, 52.
I'll get back to you on 8-5-09.
This is not possible, 27 is an odd number, 4 odd numbers will always equal an even number.