Answer:
buying groceries- we have to count how much we purchase/ how much we will pay.
building a house- we tend to calculate the distances and how high we want our house to build, we don't use words instead we use numbers and rulers to see.
when we have a child- we have to teach them how to count so them to be able to learn the basic math in life.
when we want to know how fit we are- by using tape measures to know our heights and weights and in order to know if we are not obese or just normal we have to use its formula.
doing researches in school- we are obliged to know the population of our research so that we have their evidences like we count on how many people we have to interview because the more people we interview the more thre research is reliable.
;)