To find the difference between 12 and -11 using algebra tiles, we can represent 12 with 12 white tiles (+1) and represent -11 with 11 black tiles (-1). We then subtract the number of black tiles from the number of white tiles to find the difference.
12 white tiles (+1) - 11 black tiles (-1) = 1 white tile (+1)
Therefore, the difference between 12 and -11 is 1.
Use algebra tiles to find the difference. Let one white tile equal +1 and one black tile equal -1.
12-(-11)
1
23
18
23
1 answer