## Matrices missed: find missing value in 3-by-3 grids

Complex numbers, rational functions, logarithms, sequences and series, matrix operations, etc.
honest_denverco09
Posts: 42
Joined: Tue Mar 31, 2009 2:06 am
Contact:

### Matrices missed: find missing value in 3-by-3 grids

I have 2 squares :

How can i find the two missed numbers in each square above ?Thank!
Last edited by honest_denverco09 on Mon Apr 13, 2009 10:43 pm, edited 1 time in total.

stapel_eliz
Posts: 1628
Joined: Mon Dec 08, 2008 4:22 pm
Contact:
Any answer that you can logically (not necessarily mathematically) justify should be fine. But I'd try working up and down the columns. If you can find a pattern in the first two columns, figure out what the same process would give you in the third column.

honest_denverco09
Posts: 42
Joined: Tue Mar 31, 2009 2:06 am
Contact:

### Re: Matrices missed: find missing value in 3-by-3 grids

I still don't get it, but i predict that the number in the second matrix square is maybe "1" ? and the number in the first square is unknown to me! ^^

honest_denverco09
Posts: 42
Joined: Tue Mar 31, 2009 2:06 am
Contact:

### Re: Matrices missed: find missing value in 3-by-3 grids

I have 2 squares :
Image
How can i find the two missed numbers in each square above ?Thank!

This matrix square can be solved as :
In first square : Multiply the two numbers in the same column : 2 * 6 = 18 (?)
In the second square : Divide the numbers in the same column : 2/1 = 2 (?')

Thank to my stupidness!