16. There are 5280 ft. in one mile. Reduce 5,786,968 ft. to miles. 17. There are 365 da. in one year. 63,475 da. to years. Reduce 18. At 15 a gallon, how many gallons of oil can be bought for $4.50? 19. A bushel of wheat weighs 60 lb. A cental is 100 lb. How many bushels are there in of wheat? 20. A barrel of flour contains 196 lb. barrels can be filled from 6272 lb. of flour? 18 centals How many 21. At $75 an acre, how many acres of land can be bought for $ 3000? 22. If a man saves $45 a month, in how many months will he save enough to buy a farm worth $3150? 23. There are 144 sq. in. in one square foot. Reduce 11,520 sq. in. to square feet. 24. There are 320 rd. in one mile. Reduce 1920 rd. to miles. 273. Written Problems. 1. A farmer planted an orchard of 240 trees. There were 24 trees in each row. were there in the orchard? How many rows 2. Find the cost of 26 cans of oil at $1.10 a can. 3. A trader paid 22¢ a dozen for eggs. He bought $8.80 worth. How many dozen did he buy? 4. A car made 8 trips in a day. On an average the car carried 85 people each trip. The fare was 5¢. What were the total receipts for the day? 5. If school is in session 5 hours a day for 200 days in the year, how many hours of school are there in a year? 6. A boy's salary is $20 a month. He has been paid $120. How many months has he worked? 7. A boy puts $8 in a bank each month he works. He has $176 in the bank. How many months has he been working? 8. A farmer sold his hay at $9 a ton. He received for his crop $1800. How many tons of hay did he sell? 9. A farmer sold his wheat at $.85 a bushel. He sold 78 bushels. How much did he receive for his wheat? 10. A merchant buys flour at $5 a barrel and sells it at $6. How much does he gain on each barrel? $1 is what part of $5? 11. A boy bought 30 papers at the rate of 2 for 5¢. He sold 25 of them at 5 apiece. The other 5 he gave away. Did he gain or lose, and how much? One half and one half and one half are 1 1 Add the fractions first: ++ are 3, 21 which are equal to 1. Write the under 21 the column of fractions and add the 1 9 to the column of whole numbers. 276.* 1. Find by addition the cost of 5 yards of cloth at 41 a yard. 2. How far is it around an oblong that is 81 in. long and 51⁄2 in. wide? Draw the oblong. *Dictate additional problems of a similar character. 1. Find by addition the distance around a room that is 4 yd. long and 31 yd. wide. 2. Find by addition the cost of 6 yd. of cloth at 5 a yard. SUBTRACTION OF FRACTIONS 5. Find the sum of each of the above exercises. 279. Written Exercises. 1. From 27 subtract 131. MODEL: 27 -13 Subtract: and Add to the minuend. are. Add 1 to 3. 4 and 3 are 7. 1 and 1 are 2. 5. A woman bought 8 yd. of cloth. She used 21 yd. in making a waist. How much of the cloth had she left? 6. A grocer bought 9 doz. eggs. How many dozen did he have left? He sold 51 dozen. 7. A girl bought 10 yards of lace. She used 32 yards to trim a dress. How many yards had she left? A girl bought 2 pieces of ribbon. One of the pieces was 6 yards long and the other was 4 yards long. How many yards were there in the two ribbons? |