16. How many are 2 times 18? 3 times 18? 5 times & 17. How many are 5 times 17? 4 times? 3 times 18} 18. If I cow cost 20 dollars, how much will 7 cows How much will 9 cost? How much will 12 cost? cost? 19. If a man travels 19 miles a day, how far will he travel in 9 days? In 10 days? In 11 days? In 12 days? 20. If a pound of raisins cost 15 cents, how much will 5 pounds cost? 6 pounds? 7 pounds? 11 pounds? 21. If a man digs 18 bushels of potatoes in 1 day, how many would he dig in 7 days? In 10 days? In 12 days? 22. If a man eat 15 ounces of bread in a day, how many ounces will he eat in a week? How many in 9 days? In 11 days. LESSON V. Addition Subtraction. Multiplication. 1. What will be the cost of 5 oranges at 3 cents apiece? 2. What will 7 books cost at 8 cents apiece? At 9 cents? At 15 cents? At 20 cents? 3. What will be the cost of 6 loaves of bread at 9 cents a loaf? Of 8 loaves? Of 10 loaves? Of 11 loaves? Of 12 loaves? 4. What will be the cost of 4 hats at 7 dollars apiece, and the cost of 2 coats at 12 dollars apiece? 5. What will be the cost of 12 chickens at 12 cent apiece? Of 11? Of 9? Of 7? Of 6? Of 5 ? 6. What will be the difference in cost between 2 pencils at 9 cents apiece, and 3 tops at 4 cents apiece? How much would they all cost? 7. What will be the cost of 8 yards of ribbon at 8 cents a yard? Of 5 yards? Of 6 yards? Of 9 yards? Of 12 yards? 8. What is the difference between the cost of 8 yards of cloth at 5 dollars a yard, and 12 yards at 2 lollars a yard? What would be the cost of the whole? 9. James has 25 marbles and gives 9 to William, then Charles gives him as many as he has left: how many more than he had at first will he then have ? 10. What will be the whole cost of 8 apples at 1 cent apiece, and of 4 pears at 2 cents apiece? 11. What will be the whole cost of 6 oranges at 4 cents apiece, and of 2 lernons at 3 cents apiece? 12. What will be the whole cost of 6 lemons at 2 cents apiece, and of 2 apples at 1 cent apiece? 13. What will be the whole cost of 8 quills at 2 cents apiece, and of 12 sheets of paper at 1 cent each ? 14. What will be the whole cost of 6 spelling books at 8 cents apiece, and of 5 slates at 10 cents apiece? 15. What will be the difference of the cost of 6 yards of cloth at 5 dollars a yard, and of 4 yards of cloth at 6 dollars a yard? 16. What will be the whole cost of ten sticks of candy at 2 cents apiece, and of 4 pounds of raisins at 11 cents a pound? 17. A farmer bought 9 sheep at three dollars apiece, and two calves at 4 dollars apiece: how much more did he pay for the sheep than for the calves? 18. A farmer bought 4 cows at 20 dollars apiece, and 12 sheep at 4 dollars apiece: what did the whole cost him? 19. Fifteen plus 8 plus 9, less 5, are how many? 20. Forty plus 7, less 6, plus 8 plus 9, are how many? 21. Twenty-five plus 6 plus 8, less 3, plus 1, are how many? 22. Fifty plus 6 plus 9, less 8, less 3, less 4, are how many ? 23. Sixty plus 8 plus 7 plus 1, less 6, are how many? 24. Thirty less 7 less 6, plus 8, plus 9, are how many? 25. Mary has 6 rose-bushes, and 9 buds on each; also 3 geraniums with 8 buds on each: how many buds are there in all ? 26. A family consumes 12 pounds of meat in a day. Beef is 12 cents a pound and mutton 9: how much will they save by using mutton instead of beef? 27. James bought 4 oranges at 3 cents apiece, and 2 quarts of chestnuts at 9 cents a quart: what did he pay in all? 28. James and John start from the same place, and run in opposite directions. James runs 30 rods and John 20: how far are they apart? How far would they be apart if they had run the same way? 29. Two men start from the same place and walk in opposite directions: the first walks 4 hours and goes 3 miles an hour, the second the same time and goes but 2 miles an hour: how far will they be apart? 30. Two men start from the same place and walk the same way; the first walks 4 miles an hour, the second 3: how far will they be apart at the end of the first hour? How far at the end of the second? The third ? 31. A drover bought 3 sheep at 4 dollars apiece, and 4 lambs at 2 dollars apiece: he gave in payment 2 calves at 5 dollars apiece, and the rest in cash. How much money did he pay ? 32. A jeweller bought a watch for 55 dollars, a chain for 15 dollars, and a seal for 8 dollars; and then sold the whole for 80 dollars: did he make or lose, and how much? 33. Four boys bought a foot-ball for 75 cents. John paid 20 cents, James 33 cents, and William 18 cents: how much did Reuben pay? 34. A grocer bought a hogshead of sugar for 65 dollars, and a hogshead of molasses for 55 dollars; he sold them both for 125: did he make or lose, and how much? 35. A farmer bought 4 sheep for 15 dollars, and 6 lambs for 10 dollars; he sold the whole for 30 dollars: did he make or lose, and how much? 36. A tailor has a piece of cloth containing 25 yards, and a second piece containing 35 yards; he cut 8 yards from the first piece, and 12 from the second how many yards of cloth has he left? 37. A merchant has a piece of cloth, for which he paid 36 dollars; he wishes to sell it so as to make a profit of 12 dollars: what must he ask for it? 38. A farmer has 150 sheep in three fields. In the first he has 45, in the second 55: how many has he in the third? 39. There is an orchard with ten full rows of trees and 7 trees in each row; besides which there are 3 broken rows with 4 trees in each row: how many trees are there in the orchard? How many more in the whole than in the broken rows? 40. An orchard contains 20 apple trees, 10 cherry trees, and 15 plum trees: how many more apple and cherry trees than plum trees? 11. James worked 4 days in a week for 12 cents a day, and William 2 days for 4 cents a day: how much more did James earn than William? 42. A butcher bought 16' sheep of one man, 14 of another, and 25 of a third; he then killed 9, afterwards he killed 21 how many had he left? 43. A man earned 16 dollars a month for 6 months and his son James 7 dollars a month for the same time: how much more did the father earn than the son? LESSON VI Factoring Numbers. 1. Four are how many times 2? factors of 4 ?* 2? What are the How many times 2. Six are how many times 3? What are the factors of 6? 3. Eight are how many times 4? times 2? What are the factors of 8? How many 4. Nine are how many times 3? What are the factors of 9? 5. Ten are how many times 5? How many times 2? What are the factors of 10? 6. Twelve are how many times 6? How many times 2? How many times 4? How 3 ? many times How many How many What are the factors of 12? 7. Fourteen are how many times 7? times 2? What are the factors of 14? 8. Fifteen are how many times 5? times 3? What are the factors of 15? 9. Sixteen are how many times 8? How many times 2? How many times 4? What are the fac tors of 16? 10. Eighteen are how many times 9? How many times 2? How many times 6? How many times 3 ? What are the factors of 18? *SUGGESTION.--In each of the following questions, two numbers are named, and it is required to find a third which multiplied by the second, will give a product equal to the first. The second and third numbers are called FACTORS of the first. Let the pupil point out the factors in every example. |