Although not often we all use math at some point in your day to day life. I have recently been bulking. So for me, whenever I am planning my meal out, I need to measure and calculate the amount of quantity, protiens, calories and vitamins that go into my food. For example if I am making chicken, I need to grab a certain amount and add a certain amount seasoning, veggies, protiens, calories and vitamins. This is so I have a balanced meal that will give me more healthy mass. But at least thats how I most commonly use math in my day to day life.