ed 60 cords, 102 feet-the other contained twice as much wanting 33 feet. He sold to one man 22 cords and 112 feet, to another man 30 cords and a half. How much had he left? 4. From 8 tons, 33 feet of square of timber, there has been sold at one time, 3 tons and 38 feet, at another time, 2 tons and 14 feet. How much remains unsold? 5. From a cask of wine containing 29 gallons, 3 quarts, there had been sold at one time, 14 gallons, 2 quarts, at another time 15 gallons, 1 pint, 2 gills. How much remained in the cask? 2. From 2 years, 1 minute, subtract 2 min COMPOUND MULTIPLICATION Is a rule by which any num What is Comber consisting of several depound Multiplication ? nominations may be increased any number of times in a more expeditious manner than by Ad What rule must dition. The same rule must be be observed rela- observed relative to carrying tive to carrying? from one denomination to another, as in Compound Addition. -What is that? EXAMPLES. 1. A man bought 4 cows for £3 16s. 8d. each. How much did they come to? 2. Tell me, by Addition and Multiplication, the price of eight horses, if one horse be worth £12 17s. 9d. 2qr.? 3. What is the value of 8 yards of cloth, at £1 7s. 6d. 3qr. per yard? pence. 10×2+6=Ans. Perform the same question by Addition. 4. What is the weight of 7 casks of rice, admitting each cask to weigh 2cwt. 3qr. 17 lb. ? How many ounces in half a pound? 5. A merchant bought 14 boxes of sugar; 9 of the boxes weighed 2cwt. 2qr. 7lb. each; the others weighed 2cwt. 3qr. 16lb. each. much did the whole weigh? How 3 14÷2+2 3=Ans. 6. A man bought 8 pieces of broadcloth, each containing 36 yards, 2 quarters, and 3 nails; and sold 197yds. 2qr. Ina. How much had he left? yds. qr. na. 190÷2+3 3=Ans. 7. In 12 hogsheads, each containing 84 gallons, 3 quarts, and 1 pint, how much is contained? 8. What is the solid contents of 8 piles of wood, each containing 27 cords, 104 feet, 69 inches? A blacksmith bought 8 loads of coal, each load containing 2 chaldrons, 22 bushels, 3 pecks. How much did he buy in all ? What is a composite number? Remark. Any number is said to be a composite one, when it can be produced by the multiplication of other numbers into each other. The numbers made use of to produce this effect are called component parts. component parts? Twenty is a composite number, be What are the cause it can be produced by multiplying 4 and 5 into each other, and is also produced by multiplying 10 and 2 together; 4 and 5, and also 2 and 10 are the component parts; 500 is a composite number, because it is produced by multiplying 10 and 10 and 5 together. Why is 20 a composite number? Why is 500 a composite number? What are the compotent parts of 20?-What of 500? Is 25 a composite number?-Why?—What are its components parts? Is 36 a composite number? Is 37 a composite number ?-Why? Is 40? What are the component parts of 54? Is 600?-Why? K |