(k) Of 430 ? Divide. (n) 1480 lb. by 20.† (q) 1350 lb. by 20. *This means, find how many times 70 lb. are contained in 8540 lb. contained in 8540 lb. times. Story-In 8540 lb. of ear corn there are †This means, find 1 twentieth of 1480 lb. 1 twentieth of 1480 lb. is -I wish to put 1480 lb. of wheat into 20 sacks; I must put lb. in each sack. 70 lb. are bushels. lb. Story COMMON FRACTIONS. 1. Add and 1'2. * (a) 375+256. 2. From 7 subtract 2. (b) 3467-1282. 16. At $8 per ton, 21⁄2 tons of hay cost *The pupil is expected to find by trial that the 1. c. m. of 10 and 12 is Take 1 from the 7, change it to fifths and add it to the . In problems 9 to 13 inclusive, think of the number to be multiplied as the price per yard; this will suggest the following: Problem 9, 22 yd. of ribbon at 20¢ a yard. Problem 12, This means, 2 times $6 plus $6 is dollars.of dollars. Story-At $6 a ton, 2 tons of DECIMAL FRACTIONS. (a) Multiply $546 by 3.24. This means, find 3 times $546, plus 2 tenths of $546, plus 4 hundredths of $546. (b) Multiply $437 by 2.36; (c) $375 by 5.27. (d) Multiply $352 by 6.21; (e) $284 by 7.32. (f) Multiply four hundred seventy-three dollars by four and thirty-five hundredths. (g) When oil meal is $28 a ton, how much will 4680 lb. cost? (h) Add. (4680 lb. = tons.) Subtract. Multiply. Divide. Divide. * One hundredth of 8.2 is .082. The pupil should write the decimal point in the first partial product immediately after writing the tenths' figure of the partial product. (a) Find the value of the load of hay, ticket No. 186, at Weigher. rods and foot. rods and feet. rods and feet. rods and feet. rods and feet. 1. One hundred feet are 2. Two hundred feet are 3. Three hundred feet are 4. Four hundred feet are 5. Five hundred feet are (e) Change 8 miles to rods. (g) Change 36 rods to yards. (h) Change 2160 lb. oats to bu. (i) Change 5240 lb. to tons. (j) Change 274 ft. to inches. (f) Change 30 rods to feet. MEASUREMENTS. 1. One hundred sixty square rods are one acre. of land 1 rod wide and 160 rods long is one 2. A piece of land A piece of a mile long and 1 rod wide is 3. Land 2 rd. wide and 4. Land 4 rd. wide and 5. Land 8 rd. wide and 6. Land 10 rd. wide and 7. Land 5 rd. wide and 8. Land 4 rods by 4 rods is 9. Land 4 rods by 10 rods is 10. Land 8 rods by 10 rods is rd. long is one acre. rd. long is one acre. -th of an acre. 11. Land 1 rod wide and 1 mile long is 12. Land 2 rods wide and 1 mile long is 13. Land 66 ft. wide and 1 mile long is 14. Land 5 rods by 16 rods is of an acre. of an acre. acres. acres. acres. square rods. (a) How many square rods in a rectangular piece of land 28 rd. by 36 rd.? REVIEW. (b) Find the area of a rectangular surface 18 ft. by 26 ft.* (c) Find the volume of a rectangular solid 15 ft. by 8 ft. by 23 ft.† 15. How many cords in a pile of wood 4 ft. wide, 4 ft. high, and 36 ft. long? (d) How many cords in a pile of wood 4 ft. high, 4 ft. wide, and 276 ft. long? (e) How many cords in a pile of wood 4 ft. wide, 4 ft. high, and as long as your schoolroom? *See foot-note (*), page 55. See foot-note (†), page 55. |