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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 571 · 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 24011988 are a date: day, month, year. Which chunking shows the date? (a) 240/119/88 (b) 24/0119/88 (c) 2401/19/88 (d) 24/01/1988
  2. 2.📅 The digits 28031956 are a date: day, month, year. Which chunking shows the date? (a) 2803/19/56 (b) 28/03/1956 (c) 280/319/56 (d) 28/0319/56
  3. 3.📅 The digits 03071989 are a date: day, month, year. Which chunking shows the date? (a) 030/719/89 (b) 0307/19/89 (c) 03/07/1989 (d) 03/0719/89
  4. 4.🔢 You want to remember the number 1764560549. Which chunked version keeps every digit in the same order? (a) 176 456 0549 (b) 176 456 049 (c) 176 445 60549 (d) 176 465 0549
  5. 5.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) splitting into groups (d) saying it backwards
  6. 6.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  7. 7.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  8. 8.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) three chunks, not ten (c) it has fewer digits (d) it is printed bigger
  9. 9.🔢 You want to remember the number 3726072607. Which chunked version keeps every digit in the same order? (a) 326 072 607 (b) 372 067 2607 (c) 372 607 2607 (d) 372 660 72607
  10. 10.🔢 You want to remember the number 470032151120. Which chunked version keeps every digit in the same order? (a) 4703 0215 1120 (b) 4700 0321 51120 (c) 4700 3215 1120 (d) 4700 3215 120
  11. 11.🔢 You want to remember the number 147510279. Which chunked version keeps every digit in the same order? (a) 147 510 2279 (b) 147 510 279 (c) 147 510 79 (d) 147 512 079
  12. 12.🔢 You want to remember the number 151500782191. Which chunked version keeps every digit in the same order? (a) 1151 5007 82191 (b) 1515 0078 219 (c) 1515 0078 1291 (d) 1515 0078 2191
  13. 13.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  14. 14.📅 The digits 07042020 are a date: day, month, year. Which chunking shows the date? (a) 07/0420/20 (b) 0704/20/20 (c) 070/420/20 (d) 07/04/2020
  15. 15.📅 The digits 07081972 are a date: day, month, year. Which chunking shows the date? (a) 07/08/1972 (b) 070/819/72 (c) 0708/19/72 (d) 07/0819/72
  16. 16.📅 The digits 23111987 are a date: day, month, year. Which chunking shows the date? (a) 2311/19/87 (b) 23/1119/87 (c) 23/11/1987 (d) 231/119/87
  17. 17.📅 The digits 27121976 are a date: day, month, year. Which chunking shows the date? (a) 2712/19/76 (b) 271/219/76 (c) 27/1219/76 (d) 27/12/1976
  18. 18.🔢 You want to remember the number 220224733457. Which chunked version keeps every digit in the same order? (a) 2022 4733 457 (b) 2202 2447 33457 (c) 2202 2473 3457 (d) 2202 2473 3475
  19. 19.🔢 Chunking works for… (a) only pictures (b) only numbers (c) numbers and letter lists (d) nothing at all
  20. 20.🔢 You want to remember the number 7866231090. Which chunked version keeps every digit in the same order? (a) 768 623 1090 (b) 786 623 1090 (c) 788 662 31090 (d) 786 623 109
  21. 21.🔢 You want to remember the number 982546505. Which chunked version keeps every digit in the same order? (a) 982 554 6505 (b) 982 546 505 (c) 982 546 055 (d) 825 465 05
  22. 22.📅 The digits 14012004 are a date: day, month, year. Which chunking shows the date? (a) 140/120/04 (b) 14/0120/04 (c) 1401/20/04 (d) 14/01/2004
  23. 23.🔢 You want to remember the number 776409229. Which chunked version keeps every digit in the same order? (a) 776 400 9229 (b) 776 492 29 (c) 774 609 229 (d) 776 409 229
  24. 24.🔢 You want to remember the number 482123125. Which chunked version keeps every digit in the same order? (a) 482 123 215 (b) 821 231 25 (c) 482 123 125 (d) 482 123 1125
  25. 25.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  26. 26.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
  27. 27.📅 The digits 12121983 are a date: day, month, year. Which chunking shows the date? (a) 12/1219/83 (b) 12/12/1983 (c) 121/219/83 (d) 1212/19/83
  28. 28.📅 The digits 12021971 are a date: day, month, year. Which chunking shows the date? (a) 120/219/71 (b) 12/02/1971 (c) 12/0219/71 (d) 1202/19/71
  29. 29.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  30. 30.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  31. 31.🔢 You want to remember the number 889135257686. Which chunked version keeps every digit in the same order? (a) 8891 3255 7686 (b) 8913 5257 686 (c) 8891 3525 7686 (d) 8889 1352 57686
  32. 32.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  33. 33.🔢 Instead of holding 9 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 7417540984. Which chunked version keeps every digit in the same order? (a) 741 750 4984 (b) 741 754 0984 (c) 741 754 09884 (d) 741 754 084
  35. 35.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
  36. 36.📅 The digits 06091953 are a date: day, month, year. Which chunking shows the date? (a) 06/0919/53 (b) 0609/19/53 (c) 06/09/1953 (d) 060/919/53
  37. 37.🔢 You want to remember the number 2370869977. Which chunked version keeps every digit in the same order? (a) 237 086 99977 (b) 237 086 977 (c) 327 086 9977 (d) 237 086 9977
  38. 38.📅 The digits 03022011 are a date: day, month, year. Which chunking shows the date? (a) 03/02/2011 (b) 030/220/11 (c) 0302/20/11 (d) 03/0220/11
  39. 39.📅 The digits 08022009 are a date: day, month, year. Which chunking shows the date? (a) 08/02/2009 (b) 080/220/09 (c) 08/0220/09 (d) 0802/20/09
  40. 40.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?

Answer key

  1. 24/01/1988
  2. 28/03/1956
  3. 03/07/1989
  4. 176 456 0549
  5. splitting into groups
  6. 4
  7. 5
  8. three chunks, not ten
  9. 372 607 2607
  10. 4700 3215 1120
  11. 147 510 279
  12. 1515 0078 2191
  13. 9
  14. 07/04/2020
  15. 07/08/1972
  16. 23/11/1987
  17. 27/12/1976
  18. 2202 2473 3457
  19. numbers and letter lists
  20. 786 623 1090
  21. 982 546 505
  22. 14/01/2004
  23. 776 409 229
  24. 482 123 125
  25. 7
  26. 4
  27. 12/12/1983
  28. 12/02/1971
  29. 8
  30. 2
  31. 8891 3525 7686
  32. 7
  33. 6
  34. 741 754 0984
  35. 5
  36. 06/09/1953
  37. 237 086 9977
  38. 03/02/2011
  39. 08/02/2009
  40. 5

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