Oral Exercises These children are shooting at the target. Each child in turn has two shots, the score being the sum of the numbers given in the rings hit by the arrow. 11. 4 to make 7 14. 3 to make 9 12. 2 to make 9 15. 6 to make 8 8. 6 to make 9 9. 4 to make 8 16. 2 and how many are 10? 4 and how many are 11? 17. 9 and how many are 13? 6 and how many are 14? 18. 7 and how many are 10? 9 and how many are 17? 19. 8 and how many are 15? 7 and how many are 13? Oral Exercises 1. Count by 2's from 0 to 50; 1 to 51. 2. Count by 3's from 0 to 51; 1 to 52; 2 to 53. 3. Count by 4's from 0 to 52; 1 to 53; 2 to 54; 3 to 55. Add 1, 2, 3, 4, 5, 6, 7, 8, 9 each to the numbers in the table, giving sums quickly by rows; then by columns : 26. 27. 28. 29. 30. 31. 32. 33. 34. 35. Written Exercises 1. Find the sum of 7, 9, and 6. 7 9 6 22 Adding from the bottom toward the top we have 6 and 9 are 15 and 7 are 22, but we add as quickly as we can think, "6, 15, 22." Test the result by adding downward: "7, 16, 22." Written Exercises 1. Find the sum of 267, 593, and 486. We write the addends so that the units stand in one column, the tens in another, and so on. Adding each column from the bottom up, we think: 267 For the units, "6, 9, 16," and write 6. 593 For the tens, "1 (carried), 9, 18, 24," and write 4. 486 For the hundreds, "2 (carried), 6, 11, 13," and write 13. 26. How many cents are 38 cents and 45 cents? 27. Find the sum of 185 letters and 219 letters. 28. How many nuts are 26 nuts, 17 nuts, and 25 nuts? 29. Find the sum of 84 pens, 156 MILNE'S MOD. AR. I— 2 pens, and 228 pens. Written Exercises * Add and test, timing yourself for exercises 22-28: * In all such time exercises throughout the book, it is intended that the teacher shall keep the record of each pupil, and a few days later have the same exercises worked again with the idea of having the pupils beat their previous records. |