LESSON VII. 1. How many ducks are swimming in the pond? 2. How many ducks are there on the bank? ducks are there besides the group of ten ducks? 6. Make ten marks and one mark. (//////////) / When two figures are written side by side, the one on the right denotes ones, the one next to it denotes tens. 9. Express ten. Express eleven. What does 10 represent? What does 11 represent? 10. Make ten marks in a group and two besides on your slates. (////////// // 11. How many marks are ten marks and two marks? Twelve marks. 12. Express one ten and two ones, or twelve. 12. 13. Express with figures, ten, eleven and twelve. 14. Make ten marks and three marks. ////////// /// 15. Ten and three, or thirteen, is expressed thus: 13. 16. Write all the numbers from one to thirteen. LESSON VIII. 1. Make ten marks and four marks, or fourteen marks, on your slates. ////////////// 2. Fourteen is expressed thus: 14. 3. How many books are ten books and four books? 4. Represent ten books and five books, or fifteen books, by marks. (//////////) ///// 5. Express one ten and five ones, or fifteen. 15. 6. How many are one ten and six ones? 7. Express one ten and six ones, or sixteen. 16. 8. Express one ten and seven ones, or seventeen. 17. 9. Express eighteen. 18. Express nineteen. 19. 10. Make ten marks and ten marks in separate groups on your slates. ////////// ////////// 11. How many tens are one ten and one ten? 12. Express two tens, or twenty. 20. 13. What does 0 denote? What does 2 denote? 14. Express by figures all the numbers from one to twenty. 15. How many tens are there in fifteen? 16. How many ones are there in fifteen? 18. How many ones are there in twenty-four? LESSON IX. 1. How many balls are 1 ball and 2 balls? Express the answer on your slates, thus: 1 ball and 2 balls; or, 3 and 2 are 5. balls are 3 balls; or, 1 and 2 are 3. 2. How many balls are 2 balls and 2 balls? Express the answer thus: 2 balls and 2 balls are 4 balls; or, 2 and 2 are 4. 3. How many balls are 3 balls and 2 balls? Express the answer thus: 3 balls and 2 balls are 5 3+2=5. The sign takes the place of the word and. It is read plus. The sign takes the place of the word are. It is read equal. Then 1 and 2 are 3, is written 1+2 =3, and read, 1 plus 2 equal 3. 4. Express 2 and 2 are 4, and 3 and 2 are 5, on your slates, using the signs. 5. How many balls are 4 balls and 2 balls? ++2 ? 5+2=? 6+2=? 7+2=? 8+2=? 6. How many are 9 balls and 2 balls? 10+2=? Counting numbers together is called Addition. 7. Form the addition table of twos. 1. How many birds are 1 bird and 3 birds? 2. How many acorns are 2 acorns and 3 acorns? 3. Harry bought 3 oranges one day, and 3 the next. How many oranges did he buy? 4. How many figs are 4 figs and 3 figs? 5. How many boys are 5 boys and 3 boys? 6. Helen gave a beggar 6 cents, and Mary gave him 3 cents. How many cents did both give him? 7. A man bought 7 loads of hay one week, and How many loads of hay did he buy? 3 the next. 8. How many are 8 and 3? How many are 9 and 3? 9. How many tops are 10 tops and 3 tops? 10. How many bees are 1 bee and 4 bees? 11. How many butterflies are 2 butterflies and 4 butterflies? 12. Mary had 3 cents, and her brother gave her 4 more. How many cents had she then? next. 13. A boy bought 4 pencils one day, and 4 the How many pencils did he buy in both days? 14. How many books are 5 books and 4 books? 15. How many are 6 and 4? 7 and 4? 16. If there are 7 boys on one seat and 4 on another, how many boys are there on both seats? 17.8+4 ? 9+4 ? 10+4 =? |