This printable bingo card set on the topic of Algebra has 20 unique items on a 4x4 grid. Each card draws from a pool of 20 items, so every player gets a different card.
y = 2x - 3
y = -1x + 5
y = -2x - 3
y = -3x - 6
y = 2/3x
y = -1/5x
y = 1/2x + 2
y = 2/3x - 3
y = -3/4x - 2
y = -1/5x - 1
y = 2x + 2
y = -2x - 1
y = -3x - 1
y = 3x - 9
y = 1/3x
y = 1/2x + 4
y = 3/4x - 5
y = -1/2x + 4
y = -3/5x
y = 1/5x - 2