8. If one bolt of ribbon has 6 yd. 2 ft. left on it, another bolt has 8 yd. 1 ft., another bolt has 2 yd. 1 ft., how many yards of ribbon are there? What is the total value at 60¢ a yard? 9. If 13 yd. of ribbon is added to a bolt containing 4 yd. 2 ft. 6 in., how many yards are there in all? 10. If one strip of carpet measures 5 yd. 2 ft. 7 in. and another measures 4 yd. 2 ft. 9 in., how many yards are there in all? 11. A laborer working for 40¢ an hour would receive how much money for doing these 3 pieces of work if 8 hours is considered a day's work: 12. A laborer working at 40 an hour, worked as follows during three weeks; how much did he earn if 9 hours is considered a day's work: EXAMPLE: yd. ft. in. 18 As 10 in. cannot be subtracted from 6 in., 1 of the 2 ft. must be changed to 12 in. and added to the 6 in., making 18 in.; 18 in. 10 in. = 8 in.; As in addition, a separate column must be used for each denomination to be subtracted. When the subtrahend of any denomination is larger than the minuend of that denomination, 1 unit of the next larger denomination of the minuend must be changed into units of the smaller denomination and added to the other units of that denomination before subtracting. 5. If a piece of cloth containing 4 sq. yd. 2 sq. ft. 72 sq. in. is removed from a bolt containing 25 sq. yd., how much material remains on the bolt? What is it worth at $3.60 per sq. yd.? 6. From a box containing 1 gt. gr. of buttons, 8 gr. 4 doz. are sold; how many buttons remain? What are they worth at 36¢ per gross? 7. A number of men were digging a trench a mile long; how many yards had they still to dig when 148 rd. had been completed? 8. A train required 20 hr. 45 min. to run from Chicago to New York; how long had it still to travel at 9.30 P. M. if it left Chicago at 12.40 P. M. LESSON 5 Multiplication of Denominate Numbers = The product of 7 in. X 6 is 42 in.; 42 in. is = 35 The product of the smallest denomination must be reduced so that all units of a larger denomination which may be contained in it can be carried and added to the product found by multiplying the larger denomination. 3. What is the cost of laying carpet in four rooms at $3.00 per square yard, if the area of each room is 20 sq. yd. 4 sq. ft. 18 sq. in.? tion: Find total area first.) (Sugges 4. If the circumference of a wagon wheel is 3 yd. 1 ft. 6 in., how far nas the wagon traveled when the wheel has turned 1,000 times? 5. What is the total length of 9 pieces of rope, if each piece measures 9 rd. 3 yd. 2 ft.? What is the rope worth @ 2¢ per yard? 6. Find the volume of 40 blocks of granite, the volume of each block being 1 cu. yd. 24 cu. ft. 144 cu. in. LESSON 6 Division of Denominate Numbers EXAMPLE: (Short Division) 5 hr. 40 min. 40 sec. ÷ 2 = ? EXAMPLE: (Long Division) 500 A. 83 sq. rd. 8 sq. yd. ÷ 45 ? |