Student Edition - Mathematics in Context - Britannica

AProduce Pricing1.92Paul calculated the price for 0.8 kg of Red Delicious apples at SaveSupermarket. He used his calculator and made these entries.0.8 2.40 His calculator displayed 1.92 as the total.Mary disagrees.That can’t be right!When you multiply, isn’tthe answer always largerthan the two numbers youstarted with?15. Reflect Is Mary right, or is Paul’s calculatorcorrect? Defend your position.16. Describe two ways to use a calculatorto determine the cost of 3 4 kg of walnutspriced at $7.98 per kilogram.Broken CalculatorMs. Vander of Save Supermarketlikes the calculating scale thatcustomers use at Veggies-R-Us.She decides to keep a calculatornext to her dial scale. Customerscan calculate the exact cost of theirproduce before they check out.Unfortunately, the calculatorhas been used so much that thedecimal point key no longer works.6 More or Less