6. There are 9 boys in one class, and 7 in another; how many in both classes? 7. Margaret has 8 flower pots in one room, and 5 in another; how many has she in the two rooms? 8. If you read 10 pages to-day, and 7 pages tomorrow, how many will you read in both days? 9. If a firkin of butter is worth 9 dollars, and two cords of wood are worth 8 dollars, what are both worth? 10. Myron has 6 young rabbits and 4 old ones; how many rabbits has he? 11. There are 10 birds sitting on one limb, and 9 on another; how many birds on both limbs? 12. A boy, having some peaches given him, put 8 into his hat, and 7 into his pockets; how many peaches were given him? 13. Edwin found 6 ripe pears under one tree, and 8 under another; how many pears did he find under both trees? 14. In one yard are 5 cows, and in another 7; how many cows in both yards? 15. If you work 8 examples in arithmetic to-day, and 8 more to-morrow, how many will you work in both days? 16. Robert gave 8 nuts to Henry, and kept 9; how many nuts had he at first? 12 and 2? 22 and 22. How many are 2 and 2? 2? 32 and 2? 42 and 2? 52 and 2? 72 and 2? 82 and 2? 92 and 2? 62 and 2? 13 and 3? 53 and 3.? 23 and 63 and 3? 14 and 4? 24 and 54 and 4? 64 and 4? 25 and 23. How many are 3 and 3? 3? 33 and 3? 43 and 3? 73 and 3? 83 and 3? 93 and 3? 24. How many are 4 and 4? 4? 34 and 4? 44 and 4? 74 and 4? 84 and 4? 94 25. How many are 5 and 5? 35 and 5? 45 and 5? and 4? 15 and 5? 55 and 5? 65 and 5? and 5? 16 and 6? 26 and 66 and 6? 17 and 7? 27 and 5? 57 and 7? and 7? 67 and 7? 18 and 8? 28 and 68 and 8? 19 and 9? 29 and 69 and 9? 29. How many are 9 and 9? 9? 39 and 9? 49 and 9? 59 and 9? 30. How many are 8 and 7? 18 and 7? 28 and 7? 38 and 7? 48 and 7? 58 and 7? 68 and 7? 78 and 7? 88 and 7? 98 and 7? 31. How many are 10 and 10? 40 and 10? 50 and 10? and 10? and 10? 20 and 10? 30 60 and 10? 70 14 and 8? 24 and 80 and 10? 90 and 10? 32. How many are 4 and 8? 8? 34 and 8? 44 and 8? 74 and 8? 84 and 8? 94 and 8? 54 and 8? 64 and 8? 16 and 5? 26 and 66 and 5? 56 and 5? and 5? 33. How many are 6 and 5? 5? 36 and 5? 46 and 5? 76 and 5? 86 and 5? 96 34. How many are 11 and 9? 21 and 9? 31 and 9? 41 and 9? 51 and 9? 61 and 9? 71 and 9 ? 81 and 9? 91 and 9? 35. How many are 9 and 7? 19 and 7? 29 and 7? 39 and 7? 49 and 7 ? 79 and 7? 89 and 7? 99 59 and 7? 69 and 7? and 7? 36. How many are 4 and 8? 14 and 8? 24 and 8? 34 and 8? 44 and 8? 54 and 8? 64 and 8? 74 and 8? 84 and 8? 94 and 8? 37. How many are 3 and 10? 13 and 10? 23 and 10? 33 and 10? 43 and 10? 53 and 10? 63 and 10? 73 and 10? 83 and 10? 93 and 10? 6. Addition is the process of uniting several numbers of the same kind into one equivalent number. The result is called the Sum or Amount. The sign of addition is written thus, +, and is called plus. When placed between two numbers or quantities, it shows that they are to be added together. Thus, 5+3+2 signifies that 5 and 3 and 2 are to be added together, and is read five, plus three, plus two. The sign of equality is written thus, =. When placed between two numbers or quantities, it signifies that the latter is equal to the former. ANALYSIS. As many as the sum of 34 and 25; 34 is composed of 3 tens and 4 units, and 25 of 2 tens and 5 units; 3 tens and 2 tens are 5 tens, or 50, and 4 units and 5 units are 9 units, which added to 50 makes 59. Therefore 34+25 are 59. 7. 1. A man gave 12 dollars for some corn, 8 dollars for a ton of hay, and 6 dollars for a barrel of flour; how much did he pay for all? ANALYSIS. He paid the sum of 12 dollars, 8 dollars, and 6 dollars; 12 and 8 are 20, and 6 are 26 dollars. Therefore, &c. 2. Emily paid 12 shillings for a dress, 10 shillings for a pair of shoes, and 6 shillings for a pair of gloves; what was the cost of the whole? 3. A drover had 15 horses in one pasture, 13 in another, and 9 in another; how many horses had he? 4. James has 10 cents, Henry has 7, and John has 5; how many cents have the three boys? 5. Bought a pound of candles for 14 cents, a pound of coffee for 12 cents, and a bar of soap for 9 cents; what was the cost of the whole? 6. In a shop are 7 men, 9 boys, and 6 girls at work; how many persons at work in the shop? 7. A lady sold 10 pounds of butter at one time, 12 pounds at another, and 8 pounds at another; how many pounds did she sell in all ? 8. William bought an arithmetic for 15 cents, a quire of paper for 12 cents, and a bottle of ink for 6 cents; what was the cost of the whole ? 9. Peter, Dexter, and Irwin gave some money to a beggar; Peter gave him 10 cents, Dexter 11 cents, and Irwin 13 cents; how many cents did they all give him? 10. In a certain school there are 18 girls and 24 boys; how many pupils in the school? 11. A man bought a sleigh for 20 dollars, paid 10 dollars for repairing it, and 6 dollars for painting it; what did it cost him? 12. Morgan earned 25 cents one day, and 32 the next; how much did he earn in both days? |