Which chips would you remove?
Place 16 bingo chips in 4 rows of 4 each.
Remove 6 bingo chips, leaving an even number of bingo chips in each row and column.
Which chips would you remove?
Place 16 bingo chips in 4 rows of 4 each.
Remove 6 bingo chips, leaving an even number of bingo chips in each row and column.
Which chips would you remove?
