4. Count forty. In forty? How many ones in four tens? 5. Count fifty. How many ones in five tens? In fifty? 6. How many ones in six tens? In seven tens? In eight tens? In nine tens? In ten tens? 7. How many tens in sixty? In seventy? In eighty? In ninety? 8. How many are ten and one? Ten and two? Ten and three? Ten and five? Ten and nine? 9. How many tens and ones are there in twelve? In fifteen? In nineteen ? 10. How many are two tens and one? Two tens and two? Two tens and four? Two tens and six? Two tens and eight? 11. How many tens and ones are there in twentyone? In twenty-two? In twenty-five? In twentynine? 12. How many are expressed by 1? By 2? By 3? By 4? By 5? By 6? By 7? By 8? By 9? 13. How many tens are expressed by 10? By 20? By 30? By 40? By 50? By 60? By 70? By 80? By 90? 14. How many ones are expressed by 11? By 15? By 19? By 21? By 23? By 42? By 57? 15. How many tens and ones are expressed by 18? By 28? By 63? By 75? By 98? 16. How many tens are expressed by 100? By 200? By 400? By 700? By 800 ? 17. How many hundreds and tens are expressed by 110? By 210? By 220? By 350? By 430? By 970? 18. How many hundreds, tens, and ones are expressed by 111? By 222? By 561? By 763? By 887 ? DEFINITIONS. 2. What is a unit? A Unit is a single thing, or one. 3. What is a number? A Number is a unit or a collection of units. ADDITION. LESSON II. 4. 1. John had 1 peach and his father gave him another; how many peaches did he then have ? SOLUTION. John had 1 peach and his father gave him another; he then had 1 peach and 1 peach, or 2 peaches. 2. Susan has 2 books, and Mary has 1 book; how many books have they both? 3. If you had 2 cherries, and I should give you 2, how many cherries would you then have? 4. Lucy found 2 pins, and Sarah found 3 pins; how many did they both find? 5. If you should recite 2 lessons to-day, and 4 tomorrow, how many would you recite in all? 6. A lemon cost 2 cents, and an orange cost 5 cents; how many cents did both cost? 7. Gave 2 cents for a pencil, and 6 cents for some paper; what was the cost of both ? 8. On one bush there are 2 roses, and on another there are 7 roses; how many on both bushes? 9. 2 boys and 8 boys are how many boys? 10. A farmer sold a lamb for 2 dollars, and a calf for 9 dollars; how many dollars did he get for both? 11. Alfred caught 3 birds, and Jason caught 1 bird; how many birds did they both catch? 12. James has 3 marbles, and Charles has 2 marbles; how many marbles have they both? 13. A man sold a pig for 3 dollars, and a sheep for 3 dollars; how many dollars did he receive for both? 14. Mary has 3 books, and Margaret has 4 books ; how many books have they both? 15. Edward gave 3 cents for a postage-stamp, and 5 cents for a box of wafers; how much did both cost? 16. Eliza is 3 years old; how old will she be in 6 years, if she lives? 17. A farmer has 3 cows in one field, and 7 in another; how many has he in both? 18. In a class there are 3 girls and 8 boys; how many pupils are there in the class? 19. A boy found under one apple-tree 3 apples, and under another 9 apples; how many did he find in all? 20. If you have 4 chestnuts in one hand, and 1 chestnut in the other, how many have you in both hands? 21. Susan had 4 merit marks, and obtained 2 more ; how many did she then have? 22. George found 4 eggs in one nest, and 3 eggs in another; how many did he find in both? 23. A man bought a cord of wood for 4 dollars, and half a ton of coal for 4 dollars; how much did both cost him? 24. A lady paid 4 cents for a skein of silk, and 5 cents for a spool of cotton; how much did she pay for both? 25. Ella gave 4 cents for candy, and 6 cents for nuts; how much did she give for both? DEFINITIONS. 5. What is the sum of two or more numbers? The Sum of two or more numbers is that number which is equal to those numbers. 6. What is addition? Addition is the process of finding a number equal to two or more given numbers of the same kind. LESSON III. 7. 1. 1 and 1 are how many? 2. 2 and 1 are how many? 3. 2 and 5 are how many? 4. 2 and 3 are how many? 5. 2 and 7 are how many? 6. 2 and 2 are how many? 7. 2 and 6 are how many? 8. 2 and 4 are how many? 9. 2 and 8 are how many? 10. 2 and 10 are how many? 11. 3 and 8 are how many? 12. 3 and 6 are how many ? 13. 3 and 5 are how many? many 15. 3 and 7 are how many? 16. 3 and 9 are how many? 17. 3 and 3 are how many? 18. 4 and 8 are how many? 19. 4 and 6 are how many? 20. 4 and 5 are how many? 21. 4 and 7 are how many ? 22. 4 and 4 are how many? 23. 4 and 9 are how many? 24. Abby found 5 pins, and Jane found 1; how many did they both find? 25. Ellen had 5 chickens, and her father gave her 2; how many did she then have? 26. Mary gave 5 cents for tape, and 3 cents for thread; how much did she give for both? 27. George bought 5 marbles, and had 4 given him; how many did he then have? 28. John gave to one schoolmate 5 nuts, and to another the same number; how many did he give to both? 29. Olive had 5 pins on her cushion, and stuck on it 6; how many did she then have? 30. If you spend 5 cents, and have 7 cents left, how many had you at first? 31. 5 oranges and 8 oranges are how anges? many or 32. Joseph, having lost 5 cents, had only 9 cents left; how many had he at first? 33. Gave 6 cents for paper, and 1 cent for a pen ; how much did both cost? |