These little animal counters are great for many things. You can sort them by color or by animal type. You can count out how many you have of each color or animal type, or count out a certain number of both. You can also put different numbers on cups and count out the corresponding number of animals.
My preschooler is learning to add and subtract with them these animals. Sometimes she'll come up to me and say, "Mom, what's 2+3?" We'll pull out the counting animals, make one group of 2 and one group of 3 and I'll have her count them all together.