26. A Reduction Sale Lucile needed some new dresses, so her mother took her to a sale of ready-to-wear garments. Here are some of the price tags: PRACTICE IN SUBTRACTING $7.00 $5.00 300 200 800 600 $4.00 1.93 27. Using the Thermometer A thermometer is a glass tube filled with a liquid that rises when the weather becomes warmer and falls when the weather is colder. On page 77 there is a picture of a thermometer. The figures show the number of degrees of temperature. The sign stands for degree or degrees. From 68° to 70° is the proper temperature for a schoolroom in winter. 1. With a real thermometer measure the temperature of your schoolroom. 2. If the temperature of a schoolroom is 78°, how much too high is it? 3. Put the thermometer outside the window. Does the mercury rise or fall? How much? 4. Put the thermometer in cold water and tell what happens to the mercury. How much does it change? 5. Now put the thermometer in a warm place and tell what happens to the mercury. 6. What is meant by "below zero"? Have you ever felt "below zero" weather? Where? 7. How many degrees above zero is the freezing point? Blood heat? The boiling point? 8. One day in a certain city the highest temperature was 71°; the lowest was 39°. How many degrees did the thermometer fall during the day? 9. How many degrees are there between freezing point and blood heat? Between freezing point and boiling point? 10. Find what the temperature was yesterday, both the highest point and the lowest. Give the difference between the two. 11. Find the temperature today. What is the weather prediction for tomorrow? 12. What people watch weather predictions and temperature records most closely? Why? 13. Give the temperature of your classroom for one week. Monday Tuesday Wednesday A.M. A. M. A. M. M. P.M. P. M. P. M. Thursday Friday 28. Furnishing Doll Houses Fannie and her playmates furnished their doll houses. Look at the prices and answer the following questions: 1. How much did the children pay for a stool and a pair of curtains? 2. How much did a table and a lamp cost? 6 chairs? 3. Grace bought a sofa and a set of 4 chairs. How much did they cost her? 4. How much would a bureau and a bed cost? 5. Fannie bought 4 chairs and a bureau. How much did she pay? 6. Find the cost of a bed and a sofa. 7. Find the cost of a sofa, a stool, and a pair of curtains. 8. Anna bought a chair, a lamp, and a bureau. How much did all cost? 9. Find the cost of a table, a bureau, and 4 chairs. 10. Make problems about furnishing doll houses. 29. The 25-Cent and 50-Cent Store 2. Choose three articles for the table and give their total cost. 3. Choose three things boys like and give the cost. 4. Choose two things girls like and give their cost. 5. Find on the list three things you can buy for 75¢. 6. Name four things you can buy for $1.00. 7. Name two things you can buy for 50 cents. 8. Name three things you can buy for 60 cents. 9. What is the cost of two of the cheapest articles? Of two of the most expensive articles? 10. Make problems about buying at a 25-cent and 50-cent store for your classmates to answer. |