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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 423 · 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.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  2. 2.📅 The digits 28071950 are a date: day, month, year. Which chunking shows the date? (a) 280/719/50 (b) 2807/19/50 (c) 28/07/1950 (d) 28/0719/50
  3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
  4. 4.🔢 You want to remember the number 6821213062. Which chunked version keeps every digit in the same order? (a) 682 211 3062 (b) 688 212 13062 (c) 682 121 062 (d) 682 121 3062
  5. 5.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
  6. 6.📅 The digits 25111954 are a date: day, month, year. Which chunking shows the date? (a) 2511/19/54 (b) 25/1119/54 (c) 251/119/54 (d) 25/11/1954
  7. 7.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
  8. 8.📅 The digits 09022016 are a date: day, month, year. Which chunking shows the date? (a) 090/220/16 (b) 0902/20/16 (c) 09/0220/16 (d) 09/02/2016
  9. 9.🔢 Chunking works for… (a) only pictures (b) only numbers (c) numbers and letter lists (d) nothing at all
  10. 10.🔢 You want to remember the number 205501491391. Which chunked version keeps every digit in the same order? (a) 0255 0149 1391 (b) 2055 0149 91391 (c) 2055 0191 391 (d) 2055 0149 1391
  11. 11.📅 The digits 06071989 are a date: day, month, year. Which chunking shows the date? (a) 0607/19/89 (b) 060/719/89 (c) 06/0719/89 (d) 06/07/1989
  12. 12.📅 The digits 25021951 are a date: day, month, year. Which chunking shows the date? (a) 250/219/51 (b) 25/0219/51 (c) 2502/19/51 (d) 25/02/1951
  13. 13.📅 The digits 14021995 are a date: day, month, year. Which chunking shows the date? (a) 140/219/95 (b) 1402/19/95 (c) 14/02/1995 (d) 14/0219/95
  14. 14.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
  15. 15.🔢 You want to remember the number 166710272967. Which chunked version keeps every digit in the same order? (a) 1667 1027 2967 (b) 1676 1027 2967 (c) 1667 1027 29677 (d) 1667 1027 297
  16. 16.📅 The digits 14062015 are a date: day, month, year. Which chunking shows the date? (a) 14/0620/15 (b) 1406/20/15 (c) 14/06/2015 (d) 140/620/15
  17. 17.🔢 You want to remember the number 183960866. Which chunked version keeps every digit in the same order? (a) 189 608 66 (b) 183 690 866 (c) 183 960 866 (d) 183 960 0866
  18. 18.🔢 You want to remember the number 269280025. Which chunked version keeps every digit in the same order? (a) 292 800 25 (b) 629 280 025 (c) 269 280 0025 (d) 269 280 025
  19. 19.📅 The digits 04072000 are a date: day, month, year. Which chunking shows the date? (a) 04/0720/00 (b) 040/720/00 (c) 0407/20/00 (d) 04/07/2000
  20. 20.📅 The digits 20011955 are a date: day, month, year. Which chunking shows the date? (a) 200/119/55 (b) 2001/19/55 (c) 20/0119/55 (d) 20/01/1955
  21. 21.📅 The digits 24072004 are a date: day, month, year. Which chunking shows the date? (a) 24/0720/04 (b) 240/720/04 (c) 2407/20/04 (d) 24/07/2004
  22. 22.🔢 You want to remember the number 727376461. Which chunked version keeps every digit in the same order? (a) 727 367 461 (b) 727 764 61 (c) 727 376 6461 (d) 727 376 461
  23. 23.🔢 You want to remember the number 716586449605. Which chunked version keeps every digit in the same order? (a) 7165 8644 9605 (b) 7165 6449 605 (c) 7165 8644 96055 (d) 7156 8644 9605
  24. 24.📅 The digits 24071990 are a date: day, month, year. Which chunking shows the date? (a) 24/07/1990 (b) 240/719/90 (c) 24/0719/90 (d) 2407/19/90
  25. 25.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  26. 26.📅 The digits 06041951 are a date: day, month, year. Which chunking shows the date? (a) 06/0419/51 (b) 060/419/51 (c) 0604/19/51 (d) 06/04/1951
  27. 27.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  28. 28.📅 The digits 19021994 are a date: day, month, year. Which chunking shows the date? (a) 19/02/1994 (b) 190/219/94 (c) 1902/19/94 (d) 19/0219/94
  29. 29.🔢 You want to remember the number 230311271. Which chunked version keeps every digit in the same order? (a) 230 311 271 (b) 320 311 271 (c) 230 311 71 (d) 230 331 1271
  30. 30.📅 The digits 04061988 are a date: day, month, year. Which chunking shows the date? (a) 04/06/1988 (b) 04/0619/88 (c) 040/619/88 (d) 0406/19/88
  31. 31.📅 The digits 12032021 are a date: day, month, year. Which chunking shows the date? (a) 12/0320/21 (b) 1203/20/21 (c) 120/320/21 (d) 12/03/2021
  32. 32.📅 The digits 27031988 are a date: day, month, year. Which chunking shows the date? (a) 27/03/1988 (b) 2703/19/88 (c) 27/0319/88 (d) 270/319/88
  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 643758699. Which chunked version keeps every digit in the same order? (a) 643 758 699 (b) 643 755 8699 (c) 647 586 99 (d) 463 758 699
  35. 35.🔢 You want to remember the number 256402620. Which chunked version keeps every digit in the same order? (a) 256 402 2620 (b) 256 402 260 (c) 564 026 20 (d) 256 402 620
  36. 36.📅 The digits 05071986 are a date: day, month, year. Which chunking shows the date? (a) 05/0719/86 (b) 050/719/86 (c) 05/07/1986 (d) 0507/19/86
  37. 37.📅 The digits 19061996 are a date: day, month, year. Which chunking shows the date? (a) 19/06/1996 (b) 1906/19/96 (c) 190/619/96 (d) 19/0619/96
  38. 38.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
  39. 39.📅 The digits 20072010 are a date: day, month, year. Which chunking shows the date? (a) 2007/20/10 (b) 200/720/10 (c) 20/0720/10 (d) 20/07/2010
  40. 40.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?

Answer key

  1. 2
  2. 28/07/1950
  3. three chunks, not ten
  4. 682 121 3062
  5. splitting into groups
  6. 25/11/1954
  7. 3
  8. 09/02/2016
  9. numbers and letter lists
  10. 2055 0149 1391
  11. 06/07/1989
  12. 25/02/1951
  13. 14/02/1995
  14. 2
  15. 1667 1027 2967
  16. 14/06/2015
  17. 183 960 866
  18. 269 280 025
  19. 04/07/2000
  20. 20/01/1955
  21. 24/07/2004
  22. 727 376 461
  23. 7165 8644 9605
  24. 24/07/1990
  25. 3
  26. 06/04/1951
  27. 8
  28. 19/02/1994
  29. 230 311 271
  30. 04/06/1988
  31. 12/03/2021
  32. 27/03/1988
  33. 9
  34. 643 758 699
  35. 256 402 620
  36. 05/07/1986
  37. 19/06/1996
  38. 3
  39. 20/07/2010
  40. 2

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