Mateus has 36 cents less than Lucas.
To find out how much less money Mateus has compared to Lucas, we need to subtract the amount of money Mateus has from the amount Lucas has.
Lucas has $3.23, which is equivalent to 323 cents since there are 100 cents in a dollar.
Mateus has $2.87, which is equivalent to 287 cents. Next, we subtract 287 from 323 to find the difference: 323 - 287 = 36 cents.
Therefore, Mateus has 36 cents less than Lucas.