(b) Write a division table for 3, from 3 ÷ 1 = 3 to 30 ÷ 3 = 10. To find one-third of a number, divide by 3. What is of 18? of 21?of 30? of 27? (c) Give the quotients: 12 3)15 24 6 27 ÷3 30 21 18 15 (1) 35 (d) Name the quotients, pointing to each figure outside the circle. Practice till you can go around each circle in 15 seconds. (e) Give the quotients and remainders: 310 38 3)14 3)17 3)13 3)20 3)7 (f) Give the answers: 20. If 63 cents are divided equally among 3 girls, how many cents does each girl get? (How would you check your answer?) 21. It took Helen 45 minutes to string 3 necklaces. How many minutes did it take her to string each necklace? 22. John had 108 blocks. With them he made 3 toy houses of equal size. He used blocks in each house. 23. Mother divided a box of animal crackers among Ann, Jane, and Tony. If there were 42 crackers in the box, how many crackers did each child receive? 24. At 3 cents each, how many marbles can Jack buy for 50 cents? How many cents will he have left? 25. A farmer wants to haul 72 barrels of apples to the station in 3 loads. How many barrels must he take in each load? (b) Write a division table for 6, from 6 ÷ 6 = 1 to 60 ÷ 6 = 10. To find of a number, divide the number by 6. (c) Complete the following: 4. 5)840 9. 4)792 14. 6)7506 19. 4)4272 24. There are 48 stars in our flag. These are arranged in 6 columns. How many stars are in each column? 25. With 24 cents, how many 4-cent tops can I buy? How many 6-cent tops can I buy for 24 cents? Using Multiplication and Division 1. Mary has 20 cents to spend. Oranges cost 4¢ each. How many oranges can Mary buy? 2. Sam wants to buy 15 cakes for a party. Each cake costs 3¢. How much will the 15 cakes cost? 3. John can run down the block in 25 seconds. It takes his little sister Ruth 3 times as long. How many seconds does it take Ruth to run down the block? 4. Sarah has an old clothes-line 40 feet long. She wants to cut it into 5 equal pieces for jump rope for her friends. How long will each rope be? (Is this about the right length for a jump rope?) 5. Mother baked 36 little cakes for Eleanor's party. If each child ate 3 cakes, there would be enough cakes for children. 6. If there are 221 oranges in one box, how many oranges are there in 2 boxes? In 3 boxes? In 4 boxes? 7. There are 20 children in our class. If we choose up 2 equal sides to play dodge ball, how many children are on each side? 8. If one ball costs 5 cents, how much will 3 cost? 9. If one doll costs 10 cents, how much will 3 cost? 10. If 5 balls cost 50 cents, how much will one cost? 11. If 4 oranges cost 24¢, how much does one cost? 12. If you know how many cents 5 oranges cost, will you multiply or divide to find out how much 1 orange costs? 13. If you know how many cents one ball costs, how will you find out how much 5 balls cost? Timed Tests See whether you can remember all you have learned by working the following examples. Other third-grade children are able to work these examples in the time given above each set. Do not hurry. Any child who knows his combinations can finish the examples easily in the time given. Do not copy any of the examples except in division. Place a folded paper under the line of examples, and write only the answer. When you are all ready, the teacher will say, "Go!" When the time is up, the teacher will say, "Stop!" Then exchange papers, and mark with a cross the wrong answers, as the teacher reads the answers. You may practice the examples at your seats if you wish. The teacher will pick out different examples for each test. Practice till you can get every answer right in every test. TEST I: ADDITION Write 4 correct answers in 1 minute: (1) 9 (2) 6 (3) 9 (4) 1 (5) 3 (6) 8 (7) 7 (8) 4 (9) 2 2647981 456669 782764| 3609| 4897| 4773ol 7 |