Mathematical problem solving can help you figure out the correct measurements to cook food or bake sweets. It can help you tremendously with time management (i.e., you'd know how long it would take you to get from point a to point b, or how many hours of sleep you'd get of you went to bed at 8:00pm and had to wake up at 6:00am). It can also help you with monetary things (you'd calculate how much money you'd give to a waiter for a tip or you'd figure out how much money a dress that was on sale for 50% off the normal price).
