A postage stamp costs \( \$ 0.63 \). How much would a roll of 100 stamps cost? \( \$ \square \)

If one postage stamp costs \( \$ 0.63 \), then the cost of a roll of 100 stamps can be calculated by multiplying the cost of a single stamp by 100. So, \( \$ 0.63 \times 100 = \$ 63.00 \). Therefore, a roll of 100 stamps would cost \( \$ 63.00 \). When considering bulk purchasing items like stamps, it’s often helpful to think about additional factors such as potential discounts for larger quantities or the convenience of having a roll readily available. It’s like being a stamp superhero, always prepared for the next letter-sending mission!