10. What is the sum of 51 feet and 63 feet? 11. What is the sum of 75 dollars and 13 dollars ? 12. Add together 45 rods, 63 rods, and 84 rods. 13. Add together 125 pounds, 231 pounds, 426 pounds. 14. Add together 267 yards, 488 yards, and 625 yards. 15. Henry traveled 256 miles by steamboat and 320 miles by Railroad : how many miles did he travel ? 16. George met two droves of sheep; one contained 461, and the other 375: how many sheep were there in both droves ? 17. If I pay 230 dollars for a horse, and 385 dollars for a chaise, how much shall I pay for both ? 18. A farmer paid 85 dollars for a yoke of oxen, 27 dollars for a cow, and 69 dollars for a horse: how much did he pay for all ? 19. Find the sum of 425, 346, and 681. 20. Find the sum of 135, 342, and 778. 21. Find the sum of 460, 845, and 576. 22. Find the sum of 2345, 4088, and 260. 23. Find the sum of 8990, 5632, and 5863. 24. Find the sum of 2842, 6361, and 523. 25. Find the sum of 602, 173, 586, and 408. 26. Find the sum of 424, 375, 626, and 75. 27. Find the sum of 24367, 61545, and 20372. 28. Find the sum of 43200, 72134, and 56324. 29. A young man paid 5 dollars for a hat; 6 dollars for a pair of boots, 27 dollars for a suit of clothes, and 19 dollars for a cloak: how much did be pay for all ? 30. A man paid 14 dollars for wood, 16 dollars for a stove, and 28 dollars for coal: how many dollars did he pay for all ? 31. A farmer bought a plough for 13 dollars, a cart for 46 dollars, and a wagon for 61 dollars : what was the price of all ? 32. What is the sum of 261 +31+256 +17? 33. What is the sum of 163+478+82 +19 ? 34. What is the sum of 428+632+76+394 ? 35. What is the sum of 320+856 +100+503 ? 36. What is the sum of 641+108+138+710 ? 37. What is the sum of 700+66+970+21 ? 38. What is the sum of 304 +971 +608+496 ? 39. Wbat is the sum of 848+683+420+668 ? 40. What is the sum of 868+45 +17+25+27+38 ? 41. What is the sum of 641+85+580+42+7+63 ? 42. What is the sum of 29+281+7+43+785+46 ? 43. A farmer sold 25 bushels of apples to one man, 17 bushels to another, 45 bushels to another, and 63 bushels to another: how many bushels did he sell ? 44. A merchant bought one piece of cloth containing 25 yards, another 28 yards, another 34 yards, and another 46 yards: how many yards did he buy? 45. A man bought 3 farms; one contained 120 acres, another 246 acres, and the other 365 acres : how many acres did they all contain ? 46. A traveler met four droves of cattle; the first contained 260, the second 175, the third 342, and the fourth 420 : how many cattle did the four droves contain ? 47. A carpenter built one house for 2365 dollars, another for 1648 dollars, another for 3281 dollars, and another for 5260 dollars : how much did he receive for all ? 48. Find the sum of six hundred and fifty-four, eightynine, four hundred and sixty-three, and seventy-six. 49. Find the sum of two thousand and forty-seven, three hundred and forty-five, thirty-six, and one hundred. 50. In January there are 31 days, February 28, March 31, April 30, May 31, June 30, July 31, August 31, September 30, October 31, November 30, and December 31: how many days are there in a year? 24.d. Accuracy and rapidity in adding can be acquired only by practice. The following exercises are designed to secure this important object. OBs. 1. In solving the following examples, it is recommended to the pupil simply to pronounce the result, as he adds each successive figure. Thus, in Ex. 1, instead of saying 2 and 2 are 4, and 2 are 6, &c., proceed in the following manner: “two, four, six, eight, ten, twelve, fourteen, sixteen, eighteen, twenty.” Set down naught and carry two. “Two, (to carry) three, six, nine," &c. 2. When two or three figures taken together make 10, as 8 and 2, 77 and 3, or 2, 3, and 5, it accelerates the process to add their sum at once. Thus, in Ex. 4, the pupil should say: "ten (1+9), sixteen (6), twenty-six (5+5), thirty-six (2+8),” &c. (1.) (2.) (3.) (4.) 463 647 455 258 572 595 615 346 729 181 (5.) 614 452 528 539 420 385 855 134 976 468 (6.) 2140 8963 1232 7855 2123 3333 7674 4521 6589 2637 (7.) 8675 2433 6182 2921 2209 4863 6558 5434 5276 8789 (8.) 9244 1432 7234 2523 8440 4346 6704 1852 9258 8106 |