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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 524 · 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.🔢 You want to remember the number 771093086. Which chunked version keeps every digit in the same order? (a) 771 093 0886 (b) 771 093 086 (c) 771 930 86 (d) 717 093 086
  2. 2.📅 The digits 03061975 are a date: day, month, year. Which chunking shows the date? (a) 03/0619/75 (b) 0306/19/75 (c) 030/619/75 (d) 03/06/1975
  3. 3.📅 The digits 13091993 are a date: day, month, year. Which chunking shows the date? (a) 13/09/1993 (b) 130/919/93 (c) 1309/19/93 (d) 13/0919/93
  4. 4.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
  5. 5.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
  6. 6.🔢 You want to remember the number 709221639986. Which chunked version keeps every digit in the same order? (a) 7092 2613 9986 (b) 7092 2163 9986 (c) 7709 2216 39986 (d) 7092 2163 986
  7. 7.📅 The digits 23011999 are a date: day, month, year. Which chunking shows the date? (a) 2301/19/99 (b) 230/119/99 (c) 23/0119/99 (d) 23/01/1999
  8. 8.🔢 You want to remember the number 401462554. Which chunked version keeps every digit in the same order? (a) 401 462 5554 (b) 401 462 554 (c) 401 426 554 (d) 401 462 54
  9. 9.🔢 You want to remember the number 278617324. Which chunked version keeps every digit in the same order? (a) 786 173 24 (b) 278 671 324 (c) 278 617 324 (d) 278 617 3324
  10. 10.📅 The digits 03021950 are a date: day, month, year. Which chunking shows the date? (a) 0302/19/50 (b) 03/02/1950 (c) 03/0219/50 (d) 030/219/50
  11. 11.📅 The digits 13011964 are a date: day, month, year. Which chunking shows the date? (a) 13/01/1964 (b) 13/0119/64 (c) 130/119/64 (d) 1301/19/64
  12. 12.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  13. 13.🔢 You want to remember the number 7899384308. Which chunked version keeps every digit in the same order? (a) 789 993 84308 (b) 789 938 4308 (c) 789 938 408 (d) 789 938 4380
  14. 14.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  15. 15.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
  16. 16.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 194 and 7 (d) 1 9 4 7
  17. 17.🔢 You want to remember the number 6721023425. Which chunked version keeps every digit in the same order? (a) 672 120 3425 (b) 621 023 425 (c) 672 102 3425 (d) 667 210 23425
  18. 18.🔢 Chunking works for… (a) only pictures (b) numbers and letter lists (c) only numbers (d) nothing at all
  19. 19.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  20. 20.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
  21. 21.📅 The digits 14121985 are a date: day, month, year. Which chunking shows the date? (a) 141/219/85 (b) 1412/19/85 (c) 14/1219/85 (d) 14/12/1985
  22. 22.🔢 You want to remember the number 777879518. Which chunked version keeps every digit in the same order? (a) 777 879 518 (b) 777 879 581 (c) 778 795 18 (d) 777 879 9518
  23. 23.🔢 You want to remember the number 3216478811. Which chunked version keeps every digit in the same order? (a) 321 647 88811 (b) 316 478 811 (c) 321 647 8811 (d) 231 647 8811
  24. 24.📅 The digits 15051962 are a date: day, month, year. Which chunking shows the date? (a) 1505/19/62 (b) 15/0519/62 (c) 15/05/1962 (d) 150/519/62
  25. 25.🔢 You want to remember the number 6895109741. Which chunked version keeps every digit in the same order? (a) 689 510 7941 (b) 689 510 9741 (c) 689 509 741 (d) 689 510 99741
  26. 26.📅 The digits 17081998 are a date: day, month, year. Which chunking shows the date? (a) 1708/19/98 (b) 17/08/1998 (c) 170/819/98 (d) 17/0819/98
  27. 27.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
  28. 28.🔢 You want to remember the number 239992352005. Which chunked version keeps every digit in the same order? (a) 2399 2352 005 (b) 2399 9923 52005 (c) 2399 9253 2005 (d) 2399 9235 2005
  29. 29.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  30. 30.🔢 You want to remember the number 6413208410. Which chunked version keeps every digit in the same order? (a) 641 320 08410 (b) 461 320 8410 (c) 641 320 8410 (d) 643 208 410
  31. 31.🔢 You want to remember the number 297732457. Which chunked version keeps every digit in the same order? (a) 927 732 457 (b) 297 732 457 (c) 297 324 57 (d) 297 732 4457
  32. 32.🔢 You want to remember the number 6786609267. Which chunked version keeps every digit in the same order? (a) 678 609 267 (b) 678 660 9267 (c) 676 860 9267 (d) 678 660 92267
  33. 33.🔢 You want to remember the number 626562996. Which chunked version keeps every digit in the same order? (a) 626 562 9996 (b) 626 569 296 (c) 626 529 96 (d) 626 562 996
  34. 34.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  35. 35.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) saying it backwards (d) writing it twice
  36. 36.📅 The digits 04121950 are a date: day, month, year. Which chunking shows the date? (a) 04/12/1950 (b) 0412/19/50 (c) 04/1219/50 (d) 041/219/50
  37. 37.📅 The digits 11071961 are a date: day, month, year. Which chunking shows the date? (a) 1107/19/61 (b) 110/719/61 (c) 11/0719/61 (d) 11/07/1961
  38. 38.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  39. 39.📅 The digits 22012025 are a date: day, month, year. Which chunking shows the date? (a) 22/01/2025 (b) 2201/20/25 (c) 22/0120/25 (d) 220/120/25
  40. 40.📅 The digits 03111955 are a date: day, month, year. Which chunking shows the date? (a) 0311/19/55 (b) 031/119/55 (c) 03/11/1955 (d) 03/1119/55

Answer key

  1. 771 093 086
  2. 03/06/1975
  3. 13/09/1993
  4. 5
  5. 5
  6. 7092 2163 9986
  7. 23/01/1999
  8. 401 462 554
  9. 278 617 324
  10. 03/02/1950
  11. 13/01/1964
  12. 6
  13. 789 938 4308
  14. 8
  15. 4
  16. 19 and 47
  17. 672 102 3425
  18. numbers and letter lists
  19. 2
  20. means something to you
  21. 14/12/1985
  22. 777 879 518
  23. 321 647 8811
  24. 15/05/1962
  25. 689 510 9741
  26. 17/08/1998
  27. 2
  28. 2399 9235 2005
  29. 4
  30. 641 320 8410
  31. 297 732 457
  32. 678 660 9267
  33. 626 562 996
  34. 4
  35. splitting into groups
  36. 04/12/1950
  37. 11/07/1961
  38. 3
  39. 22/01/2025
  40. 03/11/1955

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