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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 512 · 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 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  2. 2.🔢 Chunking works for… (a) only numbers (b) only pictures (c) nothing at all (d) numbers and letter lists
  3. 3.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
  4. 4.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
  5. 5.📅 The digits 09101967 are a date: day, month, year. Which chunking shows the date? (a) 091/019/67 (b) 0910/19/67 (c) 09/10/1967 (d) 09/1019/67
  6. 6.🔢 You want to remember the number 6109792453. Which chunked version keeps every digit in the same order? (a) 619 079 2453 (b) 611 097 92453 (c) 610 979 2453 (d) 610 792 453
  7. 7.🔢 You want to remember the number 7947455124. Which chunked version keeps every digit in the same order? (a) 779 474 55124 (b) 794 745 124 (c) 794 745 5124 (d) 797 445 5124
  8. 8.🔢 You want to remember the number 282970903311. Which chunked version keeps every digit in the same order? (a) 2827 9090 3311 (b) 2829 7903 311 (c) 2829 9709 03311 (d) 2829 7090 3311
  9. 9.📅 The digits 05081990 are a date: day, month, year. Which chunking shows the date? (a) 0508/19/90 (b) 050/819/90 (c) 05/08/1990 (d) 05/0819/90
  10. 10.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) means something to you (d) has no pattern
  11. 11.📅 The digits 07052023 are a date: day, month, year. Which chunking shows the date? (a) 070/520/23 (b) 07/05/2023 (c) 0705/20/23 (d) 07/0520/23
  12. 12.🔢 You want to remember the number 2311522873. Which chunked version keeps every digit in the same order? (a) 231 125 2873 (b) 231 152 273 (c) 233 115 22873 (d) 231 152 2873
  13. 13.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
  14. 14.🔢 You want to remember the number 1716695529. Which chunked version keeps every digit in the same order? (a) 171 669 529 (b) 117 166 95529 (c) 171 669 5529 (d) 171 669 5592
  15. 15.📅 The digits 16031976 are a date: day, month, year. Which chunking shows the date? (a) 160/319/76 (b) 16/0319/76 (c) 1603/19/76 (d) 16/03/1976
  16. 16.🔢 You want to remember the number 7174430057. Which chunked version keeps every digit in the same order? (a) 771 443 0057 (b) 717 443 0057 (c) 717 430 057 (d) 717 443 00057
  17. 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is a smaller number (d) it is printed bigger
  18. 18.🔢 You want to remember the number 211538093. Which chunked version keeps every digit in the same order? (a) 211 530 93 (b) 211 530 893 (c) 211 538 093 (d) 211 538 8093
  19. 19.📅 The digits 27031997 are a date: day, month, year. Which chunking shows the date? (a) 27/0319/97 (b) 2703/19/97 (c) 270/319/97 (d) 27/03/1997
  20. 20.📅 The digits 15031971 are a date: day, month, year. Which chunking shows the date? (a) 15/0319/71 (b) 1503/19/71 (c) 15/03/1971 (d) 150/319/71
  21. 21.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 and 947 (d) 1 9 4 7
  22. 22.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  23. 23.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  24. 24.🔢 You want to remember the number 259148024021. Which chunked version keeps every digit in the same order? (a) 2591 4802 021 (b) 2591 4802 4012 (c) 2591 4802 4021 (d) 2591 4480 24021
  25. 25.📅 The digits 17062015 are a date: day, month, year. Which chunking shows the date? (a) 17/06/2015 (b) 17/0620/15 (c) 170/620/15 (d) 1706/20/15
  26. 26.📅 The digits 10042002 are a date: day, month, year. Which chunking shows the date? (a) 100/420/02 (b) 10/04/2002 (c) 1004/20/02 (d) 10/0420/02
  27. 27.🔢 You want to remember the number 202918485401. Which chunked version keeps every digit in the same order? (a) 2029 1845 8401 (b) 2029 1848 54001 (c) 2029 1848 5401 (d) 2029 1848 401
  28. 28.📅 The digits 21021968 are a date: day, month, year. Which chunking shows the date? (a) 21/02/1968 (b) 2102/19/68 (c) 21/0219/68 (d) 210/219/68
  29. 29.📅 The digits 08061999 are a date: day, month, year. Which chunking shows the date? (a) 0806/19/99 (b) 08/0619/99 (c) 08/06/1999 (d) 080/619/99
  30. 30.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  31. 31.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  32. 32.🔢 You want to remember the number 6890931865. Which chunked version keeps every digit in the same order? (a) 689 099 31865 (b) 689 093 865 (c) 689 093 8165 (d) 689 093 1865
  33. 33.🔢 You want to remember the number 139527001363. Which chunked version keeps every digit in the same order? (a) 1395 2701 363 (b) 1395 2700 1363 (c) 1395 2700 01363 (d) 1395 2700 3163
  34. 34.🔢 You want to remember the number 363218904. Which chunked version keeps every digit in the same order? (a) 332 189 04 (b) 363 281 904 (c) 363 218 8904 (d) 363 218 904
  35. 35.📅 The digits 03121998 are a date: day, month, year. Which chunking shows the date? (a) 03/12/1998 (b) 031/219/98 (c) 0312/19/98 (d) 03/1219/98
  36. 36.📅 The digits 12092021 are a date: day, month, year. Which chunking shows the date? (a) 120/920/21 (b) 1209/20/21 (c) 12/0920/21 (d) 12/09/2021
  37. 37.🔢 You want to remember the number 6822403754. Which chunked version keeps every digit in the same order? (a) 682 240 37544 (b) 682 240 3754 (c) 682 243 754 (d) 682 240 3574
  38. 38.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  39. 39.📅 The digits 18122018 are a date: day, month, year. Which chunking shows the date? (a) 18/12/2018 (b) 181/220/18 (c) 18/1220/18 (d) 1812/20/18
  40. 40.🔢 You want to remember the number 8450391016. Which chunked version keeps every digit in the same order? (a) 845 039 101 (b) 884 503 91016 (c) 845 039 0116 (d) 845 039 1016

Answer key

  1. 9
  2. numbers and letter lists
  3. 3
  4. splitting into groups
  5. 09/10/1967
  6. 610 979 2453
  7. 794 745 5124
  8. 2829 7090 3311
  9. 05/08/1990
  10. means something to you
  11. 07/05/2023
  12. 231 152 2873
  13. 5
  14. 171 669 5529
  15. 16/03/1976
  16. 717 443 0057
  17. three chunks, not ten
  18. 211 538 093
  19. 27/03/1997
  20. 15/03/1971
  21. 19 and 47
  22. 5
  23. 7
  24. 2591 4802 4021
  25. 17/06/2015
  26. 10/04/2002
  27. 2029 1848 5401
  28. 21/02/1968
  29. 08/06/1999
  30. 2
  31. 5
  32. 689 093 1865
  33. 1395 2700 1363
  34. 363 218 904
  35. 03/12/1998
  36. 12/09/2021
  37. 682 240 3754
  38. 4
  39. 18/12/2018
  40. 845 039 1016

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