We all agree that math can be difficult, but math is indispensable in our daily life for some reasons. First of all, the knowledge of math could be assistance for us to manage finances. By calculating the budget, we could understand how to save and spend money smartly. For example, when we receive a salary we should divide it into some parts to plan to loosen or tighten the expenses. Secondly, we use math to calculate metrics for each daily activity. When we get up, we calculate the time to...