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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 540 · 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 854122959381. Which chunked version keeps every digit in the same order? (a) 8542 1295 9381 (b) 8541 2295 9381 (c) 8541 2295 93811 (d) 8541 2295 381
  2. 2.🔢 You want to remember the number 1251462208. Which chunked version keeps every digit in the same order? (a) 125 146 2208 (b) 125 146 208 (c) 112 514 62208 (d) 121 546 2208
  3. 3.📅 The digits 17051990 are a date: day, month, year. Which chunking shows the date? (a) 17/05/1990 (b) 1705/19/90 (c) 17/0519/90 (d) 170/519/90
  4. 4.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) splitting into groups (d) saying it backwards
  5. 5.📅 The digits 12021956 are a date: day, month, year. Which chunking shows the date? (a) 120/219/56 (b) 12/02/1956 (c) 1202/19/56 (d) 12/0219/56
  6. 6.📅 The digits 09062012 are a date: day, month, year. Which chunking shows the date? (a) 090/620/12 (b) 09/06/2012 (c) 0906/20/12 (d) 09/0620/12
  7. 7.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
  8. 8.📅 The digits 11041955 are a date: day, month, year. Which chunking shows the date? (a) 11/04/1955 (b) 11/0419/55 (c) 1104/19/55 (d) 110/419/55
  9. 9.🔢 You want to remember the number 255998442820. Which chunked version keeps every digit in the same order? (a) 2559 9844 2280 (b) 2559 9844 820 (c) 2559 9844 28220 (d) 2559 9844 2820
  10. 10.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 1 9 4 7 (c) 19 and 47 (d) 194 and 7
  11. 11.📅 The digits 06122019 are a date: day, month, year. Which chunking shows the date? (a) 061/220/19 (b) 06/1220/19 (c) 06/12/2019 (d) 0612/20/19
  12. 12.🔢 You want to remember the number 511224523364. Which chunked version keeps every digit in the same order? (a) 5112 2452 33664 (b) 5112 2542 3364 (c) 5112 2452 3364 (d) 5122 4523 364
  13. 13.📅 The digits 11062004 are a date: day, month, year. Which chunking shows the date? (a) 11/06/2004 (b) 1106/20/04 (c) 110/620/04 (d) 11/0620/04
  14. 14.🔢 You want to remember the number 4034019075. Which chunked version keeps every digit in the same order? (a) 403 401 975 (b) 403 340 19075 (c) 404 301 9075 (d) 403 401 9075
  15. 15.🔢 You want to remember the number 364370640882. Which chunked version keeps every digit in the same order? (a) 3643 7064 0882 (b) 3643 7060 882 (c) 3643 3706 40882 (d) 3463 7064 0882
  16. 16.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  17. 17.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  18. 18.📅 The digits 14031983 are a date: day, month, year. Which chunking shows the date? (a) 14/03/1983 (b) 140/319/83 (c) 14/0319/83 (d) 1403/19/83
  19. 19.📅 The digits 06051981 are a date: day, month, year. Which chunking shows the date? (a) 060/519/81 (b) 06/0519/81 (c) 0605/19/81 (d) 06/05/1981
  20. 20.📅 The digits 22102023 are a date: day, month, year. Which chunking shows the date? (a) 22/10/2023 (b) 2210/20/23 (c) 22/1020/23 (d) 221/020/23
  21. 21.🔢 Chunking works for… (a) only pictures (b) numbers and letter lists (c) only numbers (d) nothing at all
  22. 22.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
  23. 23.📅 The digits 20012017 are a date: day, month, year. Which chunking shows the date? (a) 20/0120/17 (b) 2001/20/17 (c) 20/01/2017 (d) 200/120/17
  24. 24.🔢 You want to remember the number 952823410. Which chunked version keeps every digit in the same order? (a) 592 823 410 (b) 952 834 10 (c) 952 823 410 (d) 952 822 3410
  25. 25.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  26. 26.📅 The digits 12121986 are a date: day, month, year. Which chunking shows the date? (a) 12/1219/86 (b) 12/12/1986 (c) 1212/19/86 (d) 121/219/86
  27. 27.🔢 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
  28. 28.🔢 You want to remember the number 3919190162. Which chunked version keeps every digit in the same order? (a) 391 199 0162 (b) 391 919 0162 (c) 391 991 90162 (d) 391 990 162
  29. 29.🔢 You want to remember the number 201366941. Which chunked version keeps every digit in the same order? (a) 201 369 41 (b) 201 366 914 (c) 201 366 941 (d) 201 366 6941
  30. 30.🔢 You want to remember the number 4961797505. Which chunked version keeps every digit in the same order? (a) 496 179 755 (b) 496 179 7505 (c) 491 679 7505 (d) 496 179 77505
  31. 31.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
  32. 32.🔢 You want to remember the number 523128273434. Which chunked version keeps every digit in the same order? (a) 5321 2827 3434 (b) 5231 8273 434 (c) 5231 2827 34344 (d) 5231 2827 3434
  33. 33.📅 The digits 16041997 are a date: day, month, year. Which chunking shows the date? (a) 1604/19/97 (b) 16/0419/97 (c) 160/419/97 (d) 16/04/1997
  34. 34.🔢 You want to remember the number 1654045550. Which chunked version keeps every digit in the same order? (a) 166 540 45550 (b) 165 404 5550 (c) 165 404 5505 (d) 654 045 550
  35. 35.📅 The digits 21082015 are a date: day, month, year. Which chunking shows the date? (a) 21/08/2015 (b) 210/820/15 (c) 2108/20/15 (d) 21/0820/15
  36. 36.🔢 You want to remember the number 331719227624. Which chunked version keeps every digit in the same order? (a) 3311 7192 27624 (b) 3317 9122 7624 (c) 3317 1922 7624 (d) 3317 1927 624
  37. 37.🔢 You want to remember the number 302969202. Which chunked version keeps every digit in the same order? (a) 029 692 02 (b) 300 296 9202 (c) 302 969 202 (d) 302 699 202
  38. 38.📅 The digits 07121968 are a date: day, month, year. Which chunking shows the date? (a) 0712/19/68 (b) 071/219/68 (c) 07/1219/68 (d) 07/12/1968
  39. 39.📅 The digits 06021989 are a date: day, month, year. Which chunking shows the date? (a) 06/0219/89 (b) 0602/19/89 (c) 06/02/1989 (d) 060/219/89
  40. 40.🔢 You want to remember the number 328437619163. Which chunked version keeps every digit in the same order? (a) 3284 7361 9163 (b) 3284 3761 963 (c) 3284 3761 91163 (d) 3284 3761 9163

Answer key

  1. 8541 2295 9381
  2. 125 146 2208
  3. 17/05/1990
  4. splitting into groups
  5. 12/02/1956
  6. 09/06/2012
  7. 3
  8. 11/04/1955
  9. 2559 9844 2820
  10. 19 and 47
  11. 06/12/2019
  12. 5112 2452 3364
  13. 11/06/2004
  14. 403 401 9075
  15. 3643 7064 0882
  16. 3
  17. 7
  18. 14/03/1983
  19. 06/05/1981
  20. 22/10/2023
  21. numbers and letter lists
  22. 2
  23. 20/01/2017
  24. 952 823 410
  25. 5
  26. 12/12/1986
  27. three chunks, not ten
  28. 391 919 0162
  29. 201 366 941
  30. 496 179 7505
  31. 5
  32. 5231 2827 3434
  33. 16/04/1997
  34. 165 404 5550
  35. 21/08/2015
  36. 3317 1922 7624
  37. 302 969 202
  38. 07/12/1968
  39. 06/02/1989
  40. 3284 3761 9163

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