MSM07G6_RESBK_Ch01_020_027.pe 1/2/06 12:51 PM Page 22 Name LESSON 1-3 Date Class Practice C Exponents Write each expression in exponential form. 1. 10 10 10 10 2. 7 7 7 7 7 104 75 3. 4 4 4 43 Find each value. 4. 82 64 5. 43 64 6. 63 8. 28 256 9. 35 243 10. 381 216 225 7. 152 38 343 11. 73 Compare. Write , , or . 12. 82 43 13. 92 15. 72 24 16. 102 18. 42 5 33 – 7 52 19. 23 2 14. 62 34 1001 17. 810 20. 25 10 32 – 2 92 42 6 21. If it takes Cell A 3 hours to produce two cells, how many cells will Cell A produce in 24 hours? 256 cells 22. Use exponents to complete the table. Generation Number of People Exponent Parents 2 21 Grandparents 4 22 Great Grandparents 8 23 Great-Great Grandparents 16 24 Great-Great-Great Grandparents 32 25 Copyright © by Holt, Rinehart and Winston. All rights reserved. 22 Holt Mathematics Practice A 1-3 Exponents Puzzles, Twisters & Teasers 1-2 The Great Race LESSON LESSON Name the base and the exponent for each of the following. Sam and Lloyd are bicycle racing around Europe starting in Lisbon, Portugal. The race rules state that Sam and Lloyd must each travel a different route between cities. The final distances between cities for both Sam and Lloyd are listed below. 1. 72 2. 54 7 base Sam’s Route Distance Lloyd’s Route Distance Madrid, Spain 345 380 Paris, France 742 795 London, England 350 140 Brussels, Belgium 251 249 Berlin, Germany 453 357 Vienna, Austria 461 449 710 854 538 587 1,171 1,046 Lisbon, Portugal Lloyd’s Total a p e with a p 400 800 100 200 400 400 900 600 1,000 a p t e f k e a r o 5 e a 15. 103 555 16. 94 10 10 10 17. 25 18. 36 g 9999 i l 33 3333 22222 19. How many different ways can you use the digits 3 and 5 to write expressions in exponential form? What are the expressions? two ways; 35 and 53 l ! They both mean 3 3, or 32. Holt Mathematics 20 Copyright © by Holt, Rinehart and Winston. All rights reserved. 1-3 Holt Mathematics Practice C Exponents Write each expression in exponential form. 2. 7 7 7 3. 1 1 1 1 1 3 1. 10 10 10 10 5 7 1 5. 2 2 2 2 2 2 54 85 3 66 p Write each expression in exponential form. 4. 5 5 5 5 12. 8 8 8 8 8 4 14. 53 p LESSON 9 11. 3 3 3 3 4 13. 62 a Practice B 1-3 Exponents 2 102 Write as repeated multiplication. e LESSON 1. 9 9 23 20. What do the following two expressions have in common? “three to the second power” and “three squared” 19 Copyright © by Holt, Rinehart and Winston. All rights reserved. 9. 10 10 r ! p 3 exponent 8. 2 2 2 10. 5 5 5 5 0 300 700 400 300 500 500 700 500 1,200 4 base 7 exponent 7. 4 4 Riddle: What do you call a gorilla with a banana? An 9 42 Lloyd AND THE WINNER IS: 6. 4 10 Write using exponents. 0 Rome, Italy 3 base exponent 8 exponent 5. 10 5 base Sam’s Total Lisbon, Portugal Athens, Greece 4 7 4. 5 6 base exponent 9 4. As an added bonus, at each city an alphabet letter accompanies each racer’s total. Put the letter from the winning racer at each city into the blanks below to solve the riddle. For example, Sam traveled a total of 300 miles to Madrid and Lloyd traveled a total of 400 miles. So write the “a” from Sam’s total box in the first blank in the riddle. Origin City 2 exponent 3. The race winner is the biker who completes the race with the lowest total distance (rounded to the nearest 100 miles). 5 base 1. For each city, round the distance for each biker to the nearest 100. 2. Add the distance to the bikers’ totals. 3. 68 10 6. 10 10 10 10 26 2. 7 7 7 7 7 4 3. 4 4 4 5 43 7 Find each value. 104 4. 82 64 5. 43 64 6. 63 8. 28 256 9. 35 243 10. 381 216 225 7. 152 38 343 11. 73 Find each value. 7. 62 8. 53 36 9. 103 125 11. 25 Compare. Write , , or . 1,000 12. 34 32 10. 72 49 13. 251 81 14. 160 25 12. 82 43 13. 92 15. 72 24 16. 102 Compare. Write , , or . 71 16. 102 18. 34 52 19. 25 112 92 17. 82 43 20. 62 33 33 – 7 34 1001 17. 810 20. 25 10 92 32 – 2 42 6 256 cells 22. Use exponents to complete the table. 5 22. Use exponents to write the number 81 three different ways. 811; 92; 34 Copyright © by Holt, Rinehart and Winston. 14. 62 21. If it takes Cell A 3 hours to produce two cells, how many cells will Cell A produce in 24 hours? 21. What whole number equals 25 when it is squared and 125 when it is cubed? 21 19. 23 2 Generation Copyright © by Holt, Rinehart and Winston. All rights reserved. 52 1 18. 42 5 15. 80 Holt Mathematics Number of People Exponent Parents 2 21 Grandparents 4 22 Great Grandparents 8 23 Great-Great Grandparents 16 24 Great-Great-Great Grandparents 32 25 Copyright © by Holt, Rinehart and Winston. All rights reserved. 67 22 Holt Mathematics Holt Mathematics
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