It needs no explanation to know that Mathematics is indeed needed in all fields of life, every day of the week. A personal opinion of mine would suggest that Mathematics is most subconsciously used in the area of shopping. Even without knowing we are mentally calculating the amount we have and comparing it to the prices of our goods. We also in the back of our heads have our monthly revenue running and so we are in fact well aware of how much we can spend. When we see a discount we immediately do our high school Mathematics and figure out how much we save. This same principle exists in the case of coupons and or vouchers. Using math to determine how much will have to be purchased is the only way to ensure that one will have enough food to say the least. Using math skills can help make the trip to the grocery store a much more pleasant one.