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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 550 · 40 questions
TalentJR

Memory tip (Fewer, bigger pieces): Split long numbers into groups of 3 or 4: a 10-digit phone number as 3-3-4; a 12-digit number as 4-4-4. Dates: 2 digits for the day, 2 for the month, 4 for the year: 26011950 → 26/01/1950. Check every digit stays in the same order — chunks group digits, they never change them.

NameDateTime takenScore ___ / 40
  1. 1.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  2. 2.📅 The digits 24012025 are a date: day, month, year. Which chunking shows the date? (a) 24/0120/25 (b) 2401/20/25 (c) 240/120/25 (d) 24/01/2025
  3. 3.📅 The digits 26021982 are a date: day, month, year. Which chunking shows the date? (a) 26/0219/82 (b) 26/02/1982 (c) 260/219/82 (d) 2602/19/82
  4. 4.📅 The digits 05022001 are a date: day, month, year. Which chunking shows the date? (a) 050/220/01 (b) 05/02/2001 (c) 05/0220/01 (d) 0502/20/01
  5. 5.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  6. 6.📅 The digits 17122017 are a date: day, month, year. Which chunking shows the date? (a) 171/220/17 (b) 17/12/2017 (c) 1712/20/17 (d) 17/1220/17
  7. 7.🔢 You want to remember the number 5997521097. Which chunked version keeps every digit in the same order? (a) 959 752 1097 (b) 599 775 21097 (c) 599 752 1097 (d) 597 521 097
  8. 8.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  9. 9.🔢 You want to remember the number 317124022. Which chunked version keeps every digit in the same order? (a) 317 124 02 (b) 317 124 202 (c) 317 124 4022 (d) 317 124 022
  10. 10.📅 The digits 11122013 are a date: day, month, year. Which chunking shows the date? (a) 11/1220/13 (b) 1112/20/13 (c) 111/220/13 (d) 11/12/2013
  11. 11.📅 The digits 01091995 are a date: day, month, year. Which chunking shows the date? (a) 01/0919/95 (b) 0109/19/95 (c) 010/919/95 (d) 01/09/1995
  12. 12.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) splitting into groups (d) saying it backwards
  13. 13.📅 The digits 07032002 are a date: day, month, year. Which chunking shows the date? (a) 0703/20/02 (b) 07/03/2002 (c) 070/320/02 (d) 07/0320/02
  14. 14.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
  15. 15.🔢 You want to remember the number 300929144508. Which chunked version keeps every digit in the same order? (a) 3009 2291 44508 (b) 3002 9914 4508 (c) 3009 2914 508 (d) 3009 2914 4508
  16. 16.📅 The digits 07082024 are a date: day, month, year. Which chunking shows the date? (a) 0708/20/24 (b) 07/0820/24 (c) 070/820/24 (d) 07/08/2024
  17. 17.🔢 You want to remember the number 661484139. Which chunked version keeps every digit in the same order? (a) 661 484 139 (b) 661 484 1339 (c) 661 484 39 (d) 661 484 193
  18. 18.📅 The digits 13112008 are a date: day, month, year. Which chunking shows the date? (a) 131/120/08 (b) 13/1120/08 (c) 1311/20/08 (d) 13/11/2008
  19. 19.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  20. 20.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 1 and 947 (d) 19 and 47
  21. 21.🔢 You want to remember the number 8471843108. Which chunked version keeps every digit in the same order? (a) 847 184 1308 (b) 847 843 108 (c) 847 184 43108 (d) 847 184 3108
  22. 22.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) only pictures (d) numbers and letter lists
  23. 23.🔢 You want to remember the number 666450370. Which chunked version keeps every digit in the same order? (a) 664 650 370 (b) 666 645 0370 (c) 664 503 70 (d) 666 450 370
  24. 24.🔢 You want to remember the number 8388582432. Which chunked version keeps every digit in the same order? (a) 888 582 432 (b) 838 858 2432 (c) 838 858 22432 (d) 838 858 2423
  25. 25.🔢 You want to remember the number 748251231. Which chunked version keeps every digit in the same order? (a) 748 825 1231 (b) 748 251 231 (c) 478 251 231 (d) 748 251 21
  26. 26.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it is a smaller number (d) it has fewer digits
  27. 27.🔢 You want to remember the number 512979349. Which chunked version keeps every digit in the same order? (a) 129 793 49 (b) 512 297 9349 (c) 512 979 349 (d) 512 997 349
  28. 28.📅 The digits 08111965 are a date: day, month, year. Which chunking shows the date? (a) 08/11/1965 (b) 0811/19/65 (c) 08/1119/65 (d) 081/119/65
  29. 29.📅 The digits 09091977 are a date: day, month, year. Which chunking shows the date? (a) 090/919/77 (b) 09/0919/77 (c) 0909/19/77 (d) 09/09/1977
  30. 30.🔢 You want to remember the number 6932802648. Which chunked version keeps every digit in the same order? (a) 693 288 02648 (b) 692 380 2648 (c) 693 202 648 (d) 693 280 2648
  31. 31.📅 The digits 25091968 are a date: day, month, year. Which chunking shows the date? (a) 25/09/1968 (b) 2509/19/68 (c) 250/919/68 (d) 25/0919/68
  32. 32.🔢 You want to remember the number 2409510908. Which chunked version keeps every digit in the same order? (a) 249 510 908 (b) 240 951 0980 (c) 240 951 00908 (d) 240 951 0908
  33. 33.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  34. 34.🔢 You want to remember the number 374341185. Which chunked version keeps every digit in the same order? (a) 374 341 185 (b) 377 434 1185 (c) 347 341 185 (d) 373 411 85
  35. 35.📅 The digits 10081965 are a date: day, month, year. Which chunking shows the date? (a) 10/0819/65 (b) 10/08/1965 (c) 100/819/65 (d) 1008/19/65
  36. 36.📅 The digits 12021961 are a date: day, month, year. Which chunking shows the date? (a) 120/219/61 (b) 1202/19/61 (c) 12/02/1961 (d) 12/0219/61
  37. 37.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  38. 38.📅 The digits 18021968 are a date: day, month, year. Which chunking shows the date? (a) 1802/19/68 (b) 18/02/1968 (c) 180/219/68 (d) 18/0219/68
  39. 39.📅 The digits 03072008 are a date: day, month, year. Which chunking shows the date? (a) 030/720/08 (b) 03/0720/08 (c) 03/07/2008 (d) 0307/20/08
  40. 40.📅 The digits 28052016 are a date: day, month, year. Which chunking shows the date? (a) 28/05/2016 (b) 28/0520/16 (c) 2805/20/16 (d) 280/520/16

Answer key

  1. 8
  2. 24/01/2025
  3. 26/02/1982
  4. 05/02/2001
  5. 6
  6. 17/12/2017
  7. 599 752 1097
  8. 8
  9. 317 124 022
  10. 11/12/2013
  11. 01/09/1995
  12. splitting into groups
  13. 07/03/2002
  14. 5
  15. 3009 2914 4508
  16. 07/08/2024
  17. 661 484 139
  18. 13/11/2008
  19. 4
  20. 19 and 47
  21. 847 184 3108
  22. numbers and letter lists
  23. 666 450 370
  24. 838 858 2432
  25. 748 251 231
  26. three chunks, not ten
  27. 512 979 349
  28. 08/11/1965
  29. 09/09/1977
  30. 693 280 2648
  31. 25/09/1968
  32. 240 951 0908
  33. 9
  34. 374 341 185
  35. 10/08/1965
  36. 12/02/1961
  37. 2
  38. 18/02/1968
  39. 03/07/2008
  40. 28/05/2016

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