670. Give answers in whole numbers: 1. 8.75 x 9.999; or, 8.75 x 10 nearly. 2. 24.002.4999; or, 24 nearly, or 3. 25.125 x 11.834 7. 799.9 x .103 671. Give the cost, approximately, of: 1. 49 horses at $199 each. ($200 × 49.) 2. 199 yd. 2 ft. 11 in. of cloth at $2.50 per yard. 3. 3 lb. 15 oz. of butter at 25¢ 4. 398 coats at $12 each. per lb. 5. 7 bu. 3 pk. 7 qt. potatoes at $2 per bushel. 6. 798 base-balls at 25 cents each. 7. 19 gal. 3 qt. 1 pt. alcohol at $2.49 per gallon. 8. 995 lb. tea at 593 cents per pound. 9. 7 houses at $4,995 each. 10. 597 pounds of hay at 99 cents per 100 pounds. 672. Slate Problems. 1. Find the cost of 18,756 ft. of lumber at $30 per 1,000 ft. 2. A field is 14.25 rods long by 7.4 rods wide. What is its area in square rods? 3. A rod is 16.5 feet. How many rods are there in 231 feet.? 4. How many marks are there in $100? (A mark is equal to 23.8 cents.) 5. Add 3 and 4 tenths, 96 thousandths, 100 and 5 thousandths, 27 hundredths. 6. From 2,700 take 27 hundredths. 7. Multiply 8 and 4 tenths by 9 and 25 hundredths. 8. Divide 96 and 75 hundredths by 322 and 5 tenths. 9. A load of hay, at 75 cents per 100 pounds, cost $13.98. What was the weight of the hay? 10. The circumference of a circle is 3.1416 times the diameter. How many inches in circumference is a circle whose diameter is 20 inches? 11. Show by a diagram the number of pieces of wire yd. long that can be made from 4 yd. of wire. 12. Show by a diagram that three-fourths of one is equal to one-fourth of three. 13. If of a yd. of material will make an apron, how many half aprons can be made from a yard? Show by a diagram. 14. A boy paid 6 cents for three-eighths of a pie. What would be the cost of the whole pie at the same rate? Make a drawing. 15. Seven-eighths of an acre of land is sold for $140. What is the price of an acre? REVIEW. 676. In comparing two fractions, reduce both to a common denominator. Change denominate numbers to same denominate unit. 677. Oral Exercises. 1. What part of is? (What part of 7 is 3?) 4. 3 pt. is what part of a gallon? (3 pt. is what part of 8 pt. ?) 5. What part of a gallon is 1 qt. 1 pt.? 6. Divide by . (Divide 10 fifteenths by 9 fifteenths.) 7. Divide by 8. How many sq. ft. in a rectangle 12 ft. long, 13 ft. wide? 9. of a day is how many hours and minutes? 10. 14 ounces is what part of 2 pounds? 11. ft. is what part of a yard? 12. A strip of tape 3 yards long is cut into four equal pieces. How many feet and inches in each piece? 13. At $30 per month, how much rent will I pay in 1 year, 8 months? 14. 2 months is what part of a year? 15. At of a dollar per lb., how much tea can I get for $1? 16. How many sq. yd. in a room 15 ft. long, 18 ft. wide? 17. A lot is 25 ft. by 100 ft. How many feet of fence will it take to enclose it? 18. 1 pk. 1 qt. is what part of a bushel? 19. 15 is what part of 4 dozen? 20. Reduce to lowest terms. DENOMINATE NUMBERS. 678. Slate Exercises. 1. Add 4 days 6 hours, 9 days 11 hours, 3 days 7 hours. 2. What part of a week is 1 day 18 hours? 3. If a man receives $60 interest per year, how much will he receive in 3 years 7 months? 4. Reduce 3 days 18 hours to minutes. 5. How many days and hours are there in 8,100 min.? 6.7% of a day is how many hours? 7. How many hours and minutes in .4 day? 8. A man receives $1,460 per year of 365 days. What is his salary per week? 9. Find the cost of 1 bu. 1 pk. 1 qt. of potatoes at 8 cents per half-peck. 10. A piece of meat weighing 27 lb. 12 oz. is divided among 6 persons. How many pounds and ounces does each receive? 11. How many bu., pk., and qt., are there in 5 bags, each containing 1 bu. 1 pk. 1 qt.? 12. How many gallons, quarts, and pints of ice-cream will be needed to give a half-pint to each one of 67 persons? 13. Find the cost of 7 lb. 10 oz. of tea at 40 cents per lb. 14. From a pile of 20 bu. wheat there were sold 10 bu. 3 pk. 7 qt. How much remained? 15. How many yards in a mile? How many feet? How aches? many 16. A field is 16 rods long, 12 rods wide. How many square yards does it contain? How many rods of fence will be needed to enclose it? How many feet? 17. How many rails each 30 feet long will be needed for a single track road (two tracks) 40 miles long? 18. A boy steps 33 inches. How many steps will he take in going 2 miles? 19. Dec. 20 the sun rises at Boston at 7.26 A.M. and sets at 4.30 P.M. How long is it between sunrise and sunset? How much longer is the day at Charleston, S. C., where the sun rises at 6.58 A.M. and sets at 4.57 P.M.? 20. On June 21 the sun rises at Boston at 4.23 A.M. and sets at 7.40 P.M. On the same day it rises at Charleston at 4.53 a.m. and sets at 7.11 P.M. What is the length of the day at each place? Change: 21. 17 lb. and 4 oz. to ounces. 22. 84 tons and 1,560 lb. to pounds. 23. 37 gal. and 3 qt. to quarts. 24. 45 gal. to pints. 25. 63 qt. and 1 pt. to pints. 26. 27 bu. and 3 pk. to pecks. 27. 48 pk. and 7 qt. to quarts. 29. 27 mi. to yards. 30. 16 rd. and 3 yd. to yards. 33. 1,650 ft. to rods. |