1. At sight, tell the least quantity that must be added to 21 to make an integer. Do the same with the other numbers in the table. 2. Change the common fractions to decimals, and find the sum of each column. Of all the columns. 3. Change the decimals to common fractions, and find the sum of each row. Of all the rows. NOTE. Do at sight as much as possible of the indicated work. 1. Find the sum of each column. 2. Find the sum of each row. Of all the columns. Of all the rows. 3. Subtract each number in column B from the number at the left of it in column A. 4. Subtract each number in column D from the number at the left of it in column C. 5. Multiply each number in column A by the number at the right of it in column B. 6. Multiply each number in column D by the number at the left of it in column C. 7. Divide each number in column A by the number at the right of it in column B. 8. Divide each number in column D by the number at the left of it in column C. FARM PROBLEMS THE ESTIMATED PRODUCTION AND VALUE OF CERTAIN CROPS FOR THE YEAR 1909 AS GIVEN IN A U. S. GOVERNMENT REPORT. 1. Find the farm value in dollars of the yield of one acre of each of the above crops. 2. How many tons of barley were produced from 28 acres? 3. How many bushel bags were required to ship the wheat raised on 175 acres? 4. How many acres must be planted to potatoes to raise 26,700 bushels? 5. A farmer raised 303 tons of oats. did he plant? How many acres 6. How many cars of a capacity of 30,000 pounds each were required to carry the wheat raised on 2500 acres? 7. Make up problems based on the above table. REVIEW OF MEASUREMENTS 1. How many pencils in of a gross? 2. How many sheets in 10 quires of paper? 3. How many reams in 24 quires? 4. Change 2 min. to seconds. 7. How many hours in a week? Oral 8. How many score in 70 yr.? How many decades? 9. How many centuries from 614 B.C. to 1914 A.D.? 10. Repeat the table of linear or long measure. 11. A table is 2 ft. 8 in. long and 1 ft. 9 in. wide. Express its dimensions in feet. In inches. 12. What decimal part of a yard is 27 in.? 13. How many inches in 25 yd.? 14. A street is 10 rd. long and 66 ft. wide. Express its length in feet and its width in rods. 15. Change & mi. to rods; 400 rd. to miles. 16. How many rods in .1 mi.? 17. Repeat the table of square or surface measure. 18. What is a rectangle? of 19. When is a rectangle a square? 20. How many square inches in 12 sq. ft.? In.5 sq. ft.? 21. What part of a square foot is 108 sq. in.? 22. Change 10 sq. ft. to square inches. 23. How many square rods in 1 A.? 24. How many acres in 400 sq. rd.? To square yards. In .6 A.? 25. How many 2-in. squares can be cut from a piece paper 6 in. square? 26. How many square yards in a floor 24 ft. by 18 ft.? 27. How many acres in a lot 40 rd. by 20 rd.? 28. What is the perimeter of a 2-in. square? A 6-in. square? 29. A sheet of drawing paper 12 in. long covers 108 sq. in. What is the width? 30. How many rods of fence will inclose a field 25 rd. long whose width is its length? What is the area of the field? 31. Mrs. Winter has two flower beds. One is 61 ft. by 4 ft.; the other is a square whose perimeter is 24 ft. Which has the greater area? How much wire netting will be required to inclose each lot? 32. How many square feet in the bottom and sides of a tank 2 ft. by 2 ft. by 2 ft.? 33. A room is 20 ft. long, 10 ft. wide, and 9 ft. high. What is its perimeter? The area of the walls? The area of the ceiling? How many cubic feet in the room? 34. Repeat the table of cubic or volume measure. 35. What is a rectangular prism? 36. When is a rectangular prism a cube? 37. How many surfaces has a rectangular prism? 38. What is the surface area of a 5-in. cube? Its volume? 39. The surface of a cube is 24 sq. in. What is the area of each side? What are the dimensions of the cube? Its volume? 40. What is the volume of a stone block 4 ft. by 3 ft. by 2 ft.? Its surface? 41. A common brick 8 in. long and 2 in. thick contains 64 cu. in. What is its width? 42. The base of a capacity is 60 cu. in. collar box covers 15 sq. in.; its What is its depth? 43. How many 2-in. cubes can be cut from a cubical block of wood 4 in. long? 44. How many cubic yards of earth are thrown out in digging a cellar 30 ft. by 27 ft. by 6 ft.? 45. The water is 10 ft. deep in a well whose bottom covers 12 sq. ft. How many cubic feet of water in the well? 46. What is a board foot? 47. How many board feet in a board 12 ft. long, 1 ft. wide, and 1 in. thick? If in. thick? If 11⁄2 in. thick? 48. Mr. White buys 100 planks each 8 ft. by ft. by 2 in. How many board feet? 49. How many feet of 7-in. flooring must be bought for a room 20 ft. by 10 ft., allowing for waste? |