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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 69 · 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.📅 The digits 19011973 are a date: day, month, year. Which chunking shows the date? (a) 19/0119/73 (b) 19/01/1973 (c) 1901/19/73 (d) 190/119/73
  2. 2.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 1 9 4 7 (d) 19 and 47
  3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) three chunks, not ten (d) it is printed bigger
  4. 4.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
  5. 5.🔢 You want to remember the number 3109503752. Which chunked version keeps every digit in the same order? (a) 310 950 37522 (b) 319 503 752 (c) 310 950 3752 (d) 310 953 0752
  6. 6.📅 The digits 28042000 are a date: day, month, year. Which chunking shows the date? (a) 2804/20/00 (b) 28/0420/00 (c) 28/04/2000 (d) 280/420/00
  7. 7.📅 The digits 16062018 are a date: day, month, year. Which chunking shows the date? (a) 16/06/2018 (b) 1606/20/18 (c) 160/620/18 (d) 16/0620/18
  8. 8.📅 The digits 11071992 are a date: day, month, year. Which chunking shows the date? (a) 11/0719/92 (b) 1107/19/92 (c) 110/719/92 (d) 11/07/1992
  9. 9.🔢 You want to remember the number 288215354809. Which chunked version keeps every digit in the same order? (a) 2882 2153 54809 (b) 8282 1535 4809 (c) 2882 1535 809 (d) 2882 1535 4809
  10. 10.📅 The digits 03031967 are a date: day, month, year. Which chunking shows the date? (a) 0303/19/67 (b) 03/0319/67 (c) 030/319/67 (d) 03/03/1967
  11. 11.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
  12. 12.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only numbers (d) only pictures
  13. 13.🔢 You want to remember the number 170829537. Which chunked version keeps every digit in the same order? (a) 170 882 9537 (b) 710 829 537 (c) 170 829 537 (d) 170 829 37
  14. 14.🔢 You want to remember the number 312648087. Which chunked version keeps every digit in the same order? (a) 312 648 07 (b) 312 648 087 (c) 132 648 087 (d) 311 264 8087
  15. 15.📅 The digits 07022001 are a date: day, month, year. Which chunking shows the date? (a) 0702/20/01 (b) 070/220/01 (c) 07/0220/01 (d) 07/02/2001
  16. 16.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  17. 17.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
  18. 18.🔢 You want to remember the number 463056393. Which chunked version keeps every digit in the same order? (a) 460 356 393 (b) 463 056 3993 (c) 463 056 33 (d) 463 056 393
  19. 19.🔢 You want to remember the number 3702849615. Which chunked version keeps every digit in the same order? (a) 377 028 49615 (b) 730 284 9615 (c) 702 849 615 (d) 370 284 9615
  20. 20.📅 The digits 20111974 are a date: day, month, year. Which chunking shows the date? (a) 20/1119/74 (b) 20/11/1974 (c) 2011/19/74 (d) 201/119/74
  21. 21.🔢 You want to remember the number 7805940014. Which chunked version keeps every digit in the same order? (a) 705 940 014 (b) 780 594 0104 (c) 788 059 40014 (d) 780 594 0014
  22. 22.📅 The digits 05031988 are a date: day, month, year. Which chunking shows the date? (a) 05/0319/88 (b) 050/319/88 (c) 05/03/1988 (d) 0503/19/88
  23. 23.🔢 You want to remember the number 163209773. Which chunked version keeps every digit in the same order? (a) 163 297 73 (b) 613 209 773 (c) 116 320 9773 (d) 163 209 773
  24. 24.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  25. 25.🔢 You want to remember the number 6275756284. Which chunked version keeps every digit in the same order? (a) 627 575 6284 (b) 672 575 6284 (c) 627 575 628 (d) 662 757 56284
  26. 26.🔢 You want to remember the number 191734734498. Which chunked version keeps every digit in the same order? (a) 1971 3473 4498 (b) 1917 3473 4498 (c) 1917 3473 498 (d) 1917 3473 44498
  27. 27.🔢 You want to remember the number 515099761. Which chunked version keeps every digit in the same order? (a) 550 997 61 (b) 515 099 671 (c) 515 099 761 (d) 515 099 7661
  28. 28.📅 The digits 16022004 are a date: day, month, year. Which chunking shows the date? (a) 1602/20/04 (b) 160/220/04 (c) 16/02/2004 (d) 16/0220/04
  29. 29.🔢 You want to remember the number 921853428. Which chunked version keeps every digit in the same order? (a) 921 885 3428 (b) 921 853 28 (c) 921 853 428 (d) 921 853 482
  30. 30.📅 The digits 16052024 are a date: day, month, year. Which chunking shows the date? (a) 1605/20/24 (b) 16/05/2024 (c) 160/520/24 (d) 16/0520/24
  31. 31.🔢 You want to remember the number 6899393329. Which chunked version keeps every digit in the same order? (a) 689 939 332 (b) 689 939 33329 (c) 689 939 3392 (d) 689 939 3329
  32. 32.📅 The digits 01122003 are a date: day, month, year. Which chunking shows the date? (a) 0112/20/03 (b) 011/220/03 (c) 01/1220/03 (d) 01/12/2003
  33. 33.📅 The digits 02101963 are a date: day, month, year. Which chunking shows the date? (a) 021/019/63 (b) 02/1019/63 (c) 02/10/1963 (d) 0210/19/63
  34. 34.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  35. 35.🔢 You want to remember the number 531797062. Which chunked version keeps every digit in the same order? (a) 531 797 0062 (b) 531 770 62 (c) 531 797 062 (d) 531 790 762
  36. 36.🔢 You want to remember the number 244156531. Which chunked version keeps every digit in the same order? (a) 244 156 53 (b) 244 156 531 (c) 244 156 513 (d) 244 115 6531
  37. 37.📅 The digits 20122011 are a date: day, month, year. Which chunking shows the date? (a) 2012/20/11 (b) 20/1220/11 (c) 201/220/11 (d) 20/12/2011
  38. 38.🔢 You want to remember the number 816251711007. Which chunked version keeps every digit in the same order? (a) 8162 5171 1007 (b) 8162 5177 11007 (c) 8162 1571 1007 (d) 8162 5111 007
  39. 39.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) splitting into groups (d) saying it backwards
  40. 40.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?

Answer key

  1. 19/01/1973
  2. 19 and 47
  3. three chunks, not ten
  4. 3
  5. 310 950 3752
  6. 28/04/2000
  7. 16/06/2018
  8. 11/07/1992
  9. 2882 1535 4809
  10. 03/03/1967
  11. 4
  12. numbers and letter lists
  13. 170 829 537
  14. 312 648 087
  15. 07/02/2001
  16. 5
  17. 5
  18. 463 056 393
  19. 370 284 9615
  20. 20/11/1974
  21. 780 594 0014
  22. 05/03/1988
  23. 163 209 773
  24. 3
  25. 627 575 6284
  26. 1917 3473 4498
  27. 515 099 761
  28. 16/02/2004
  29. 921 853 428
  30. 16/05/2024
  31. 689 939 3329
  32. 01/12/2003
  33. 02/10/1963
  34. 6
  35. 531 797 062
  36. 244 156 531
  37. 20/12/2011
  38. 8162 5171 1007
  39. splitting into groups
  40. 5

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