30. How many are 2 and 5? 2 and 7? 2 and 10? 2 and 12? 3 and 3? 3 and 9? 3 and 12? 4 and 2? 4 and 6? 4 and 8? 4 and 10? 4 and 12? 5 and 3? 5 and 5? 5 and 9? 5 and 11? 6 and 4? 6 and 7? 6 and 10? 6 and 12? 7 and 2? 7 and 4? 7 and 77 and 9? 7 and 12? 8 and 2? 8 and 5? 8 and 7? 8 and 9? 8 and 10? 8 and 12? 9 and 6? 9 and 9? 9 and 12? 10 and 3? 10 and 4? 10 and 6? 10 and 8? 10 and 11? 10 and 12? 11 and 3? 11 and 5? 11 and 6? 11 and 9? 11 and 12? 12 and 3? 12 and 6? 12 and 9? 12 and 12? Note. The design of the foregoing and following questions is to prevent the scholar from resting satisfied with saying his table merely by rote, which frequently happens. For, if he can count, he will say it, without making a single addition in his mind. 31. You borrow 12 dollars at one time, and 2 at another; how much have you borrowed in all? How many are 12 and 2. 32. William has 11 cents, and James 11; how many do they both have? How many are 11 and 11? 33. A man bought a cart for 13 dollars, and a plough for 7 dollars; how much did he pay for both? How many are 13 and 7? How 34. A man bought 10 bushels of rye for 15 dollars, 6 bushels of apples for 6 dollars; how much did he pay for both? many are 15 and 6? 35. William has 4 marbles in one pocket, 6 in the other, and 3 in his right hand; how many has he in all? How many are 4, 6 and 3? 36. Peter gave to his companions apples as follows; to James 7, to Henry 9, to William 10; how many did he give away? How many are 7, 9 and 10? 37. Rufus has 12 cents, James 12, and Thomas 2; if Rufus and James should give Thomas all their cents, how many would Thomas have: How many are 12, 12 and 2? 38. You give 16 cents for a knife, 4 cents for an inkstand, and 5 for a lead pencil; how much will all of them come to? How many are 16, 4 and 5? 39. Your brother William gave you 19 cents, your brother John 10, and your cousin 2; how many did you have given you in all? How many are 19, 10 and 2? 40. How many are 6 and 4? 16 and 4? 26 and 4? 36 and 4? 46 and 4? 56 and 4? 66 and 4? 76 and 4? 86 and 4? 96 and 4? 10 and 5? 20 and 5? 40 and 5? 70 and 5? 80 and 5? 6 and 10? 6 and 40? 6 and 70? 7 and 3? 17 and 3? 37 and 3? 57 and 3? 77 and 3? 97 and 3? 5 and 5? 5 and 10? 5 and 15? 5 and 20? 25 and 5? 30 and 5? 45 and 5? 60 and 5? 75 and 5? 95 and 5? 8 and 4? 18 and 4? 28 and 4? 38 and 4? 48 and 4? 58 and 4? 68 and 4? 78 and 4? 88 and 4? 98 and 4? 9 and 3? 19 and 3? 29 and 3? 49 and 3? 79 and 3? 89 and 3? 6 and 5? 6 and 15? 6 and 25? 6 and 35? 6 and 45 ? 6 and 65? 6 and 85? 6 and 95? SUBTRACTION. ¶ II. 1. If you should lose one finger from one hand, how many would you have left on that hand? How many are 4 less 1? Why? Ans. Because 1 and 3 are 4. 2. If you have 5 cents, and give away 2, how many will you have left? How many are 5 less 2 then? Why? 3. If you shut both your little fingers, and leave the other fingers open, how many will be open? How many are 8 less 2? Why? 4 If you have 8 cents, and lose 3, how many will you have eft How many are 8 less 3? Why? 5 If you have 9 cents in a box, and take out 4, how many will be left in the box? How many are 9 less 4, or 4 from 9? Wvby? 6. You borrow 8 pins, and pay 4; how many do you still owe? How many are 4 from 8 then? Why? 7. 'f you have 12 dollars, and lose 2, how many will you have lt? How many are 2 from 12 then? Why? 8. A man, owing 20 dollars, paid 16; how many remain to be paid? How many are 16 from 20 then? Why? 9. You gave 18 cents for an inkstand, and sold it for 16 cents, did you make or lose, and how much? How many are 16 from 18 then? Why? 10. Your papa gave you 9 dollars, and you gave your brother 5; how many had you left? How many are 5 from 9 then? Why? 11. William bought a knife for 20 cents, and sold it for 22, how much did he make in trading? How many are 20 from 22 then? Why? 12. A man bought a barrel of molasses for 15 dollars, and sold it for 19; how much more than he gave for it did he sell it for? How many are 15 from 19 then? Why? 13. William has apples in both pockets; in one pocket he has 11, in the other 18; how many has he in one pocket more than in the other? How many are from 18 then? Why? 14. A boy gave 17 cents for some picture-books, which were worth no more than 10 cents; how much more than their worth did he give for them? How many are 10 from 17? Why? 15. A man bought a cow for 13 dollars, and a calf for 3; how much more did the cow cost than the calf? How many are 3 from 13? Why? 16. A man bought a barrel of flour for 17 dollars, and, not proving so good as he expected, he could sell it for no more than 13 dollars; how much did he lose on it? How many are 13 from 17? Why? 17. A man bought a barrel of beef for 20 dollars, and, being damaged, he is obliged to lose 12 dollars on the sale of it; how much did he sell it for? How many are 12 from 20 then? Why? 18. How many legs will 4 chairs have to stand on, if 1 have 3 broken legs? How many are 3 from 16? Why? 19. 20 birds light on a tree; if 6 fly off, how many are left on the tree? How many are 6 from 20? Why? 20. Suppose you and William lose a finger apiece, how many fingers will you both have then? How many are 2 from 16? Why? 21. If you have 25 cents, and give 20 for a knife, and the "est for some marbles, how many cents will tl.e marbles cost? Hw much more will the knife cost than the marbles? How many are 20 from 25? 5 from 20? Why? 22. A poor man had 16 bushels of rye given him; his eldest son gave him 10 bushels, and the youngest the rest; how many bushels did the youngest give him? How many did the clder give him more than the younger? How many are 10 from 16? 6 from 10? Why? 23. 28 boys were sliding on the ice, which breaking, all Lut 4 fell in and perished; how many lost their lives? How many are 4 from 28? Why? 24. Repeat the SUBTRACTION TABLE. 1 from 1 leaves 0 2 from 2 leaves 0 1 from 2 leaves 1 3 from 3 leaves 0 2 from 3 leaves 1 3 from 4 leaves 1 10 from 10 leaves 0111 from 11 leaves 7 0112 from 12 leaves 0 Questions on the Table. 4 from 25. How many does 2 from 8 leave? 2 from 10? 2 from 12? 2 from 15? 2 from 20? 2 from 24? 3 from 7? 3 from 10? 3 from 12? 3 from 18? 3 from 19? 4 from 8? 4 from 9? 13? 4 from 15? 4 from 18? 4 from 20? 5 from 10? 5 from 14? 5 from 17? 5 from 20? 5 from 25? 6 from 12? 6 from 18? 6 from 20? 6 from 26? 7 from 14? 7 from 21? 7 from 23? 8 from 10? 8 from 12? 8 from 15? 8 from 16? 8 from 19? 8 from 20? 9 from 12? 9 from 15? 9 from 18? 9 from 20? 9 from 22? 10 from 15? 10 from 17? 10 from 19? 10 from 20? 10 from 22? 10 from 25? 11 from 15? 11 from 18? 11 from 19? 11 from 22? 12 from 14? 12 from 16? 12 from 19? 12 from 24? Practical Questions on the Table. 26. If you buy 15 cents' worth of tape, and give the shopkecper a pistareen, or twenty cent bit, how many cents must you have in change? How many are 15 from 20? Why? 27. If you had 17 fingers, how many would you have more than you have now? How many are 8 from 17? Why? 28. A man had to travel 24 miles, but has travelled all but 4, how many miles has he journeyed? How many are 4 from 24? Why? 29. 20 children are in a class, and the 8 best are put into a higher class; how many are left in the lower class? How many are 8 from 20? Why? 30. If you have 25 cents, and should give 10 cents for a ruler, and 10 for a top, how many cents will you have left? How many do 10 and 10 from 25 leave? Why? 31. You have 16 apples, and give 5 to your sister, 5 to your brother; how many will you have left? How many do 5 and 5 from 16 leave? Why? |