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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 900 · 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 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  2. 2.🔢 You want to remember the number 1899810867. Which chunked version keeps every digit in the same order? (a) 199 810 867 (b) 189 981 0867 (c) 189 918 0867 (d) 118 998 10867
  3. 3.🔢 You want to remember the number 269459523. Which chunked version keeps every digit in the same order? (a) 269 459 523 (b) 269 459 53 (c) 269 495 523 (d) 266 945 9523
  4. 4.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  5. 5.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
  6. 6.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it has fewer digits (c) it is a smaller number (d) three chunks, not ten
  7. 7.🔢 You want to remember the number 212905777483. Which chunked version keeps every digit in the same order? (a) 2129 0577 4783 (b) 2129 0577 7483 (c) 2129 0577 748 (d) 2129 0577 74483
  8. 8.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  9. 9.📅 The digits 02071977 are a date: day, month, year. Which chunking shows the date? (a) 02/07/1977 (b) 0207/19/77 (c) 02/0719/77 (d) 020/719/77
  10. 10.📅 The digits 09011985 are a date: day, month, year. Which chunking shows the date? (a) 090/119/85 (b) 09/0119/85 (c) 0901/19/85 (d) 09/01/1985
  11. 11.📅 The digits 20031987 are a date: day, month, year. Which chunking shows the date? (a) 2003/19/87 (b) 200/319/87 (c) 20/0319/87 (d) 20/03/1987
  12. 12.🔢 You want to remember the number 814133905901. Which chunked version keeps every digit in the same order? (a) 8141 3930 5901 (b) 8141 3399 05901 (c) 8141 3390 5901 (d) 8113 3905 901
  13. 13.📅 The digits 15011979 are a date: day, month, year. Which chunking shows the date? (a) 15/01/1979 (b) 1501/19/79 (c) 150/119/79 (d) 15/0119/79
  14. 14.📅 The digits 06112007 are a date: day, month, year. Which chunking shows the date? (a) 06/11/2007 (b) 061/120/07 (c) 06/1120/07 (d) 0611/20/07
  15. 15.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) reading very fast (d) writing it twice
  16. 16.🔢 You want to remember the number 3897280409. Which chunked version keeps every digit in the same order? (a) 389 728 0409 (b) 389 728 049 (c) 387 928 0409 (d) 389 728 00409
  17. 17.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  18. 18.🔢 You want to remember the number 1163869119. Which chunked version keeps every digit in the same order? (a) 116 386 911 (b) 116 388 69119 (c) 116 386 9119 (d) 116 389 6119
  19. 19.📅 The digits 25042014 are a date: day, month, year. Which chunking shows the date? (a) 2504/20/14 (b) 25/04/2014 (c) 25/0420/14 (d) 250/420/14
  20. 20.📅 The digits 03012014 are a date: day, month, year. Which chunking shows the date? (a) 03/0120/14 (b) 03/01/2014 (c) 030/120/14 (d) 0301/20/14
  21. 21.🔢 You want to remember the number 141758277577. Which chunked version keeps every digit in the same order? (a) 1417 5827 7577 (b) 1417 5877 577 (c) 1417 8527 7577 (d) 1417 7582 77577
  22. 22.📅 The digits 07061979 are a date: day, month, year. Which chunking shows the date? (a) 07/06/1979 (b) 0706/19/79 (c) 07/0619/79 (d) 070/619/79
  23. 23.📅 The digits 21032024 are a date: day, month, year. Which chunking shows the date? (a) 2103/20/24 (b) 210/320/24 (c) 21/03/2024 (d) 21/0320/24
  24. 24.🔢 You want to remember the number 652234607580. Which chunked version keeps every digit in the same order? (a) 6522 3640 7580 (b) 6522 3460 580 (c) 6522 3460 7580 (d) 6522 3460 75580
  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.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  27. 27.🔢 You want to remember the number 691595612. Which chunked version keeps every digit in the same order? (a) 691 955 612 (b) 691 595 612 (c) 615 956 12 (d) 699 159 5612
  28. 28.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  29. 29.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  30. 30.🔢 A chunk is easiest to keep when it… (a) changes daily (b) is very long (c) means something to you (d) has no pattern
  31. 31.🔢 You want to remember the number 450864308. Which chunked version keeps every digit in the same order? (a) 450 864 3088 (b) 450 864 38 (c) 450 684 308 (d) 450 864 308
  32. 32.📅 The digits 19062018 are a date: day, month, year. Which chunking shows the date? (a) 190/620/18 (b) 1906/20/18 (c) 19/0620/18 (d) 19/06/2018
  33. 33.🔢 You want to remember the number 194876337. Which chunked version keeps every digit in the same order? (a) 194 876 337 (b) 194 876 6337 (c) 194 873 637 (d) 194 876 37
  34. 34.🔢 You want to remember the number 2571488999. Which chunked version keeps every digit in the same order? (a) 257 148 89999 (b) 257 148 8999 (c) 257 148 899 (d) 257 418 8999
  35. 35.📅 The digits 06021989 are a date: day, month, year. Which chunking shows the date? (a) 0602/19/89 (b) 06/02/1989 (c) 060/219/89 (d) 06/0219/89
  36. 36.🔢 You want to remember the number 290802230. Which chunked version keeps every digit in the same order? (a) 908 022 30 (b) 290 802 2230 (c) 290 802 230 (d) 290 802 320
  37. 37.🔢 You want to remember the number 760155636138. Which chunked version keeps every digit in the same order? (a) 7601 5563 613 (b) 7601 5563 61138 (c) 7601 5653 6138 (d) 7601 5563 6138
  38. 38.🔢 You want to remember the number 7257143328. Which chunked version keeps every digit in the same order? (a) 725 714 328 (b) 725 714 3328 (c) 725 571 43328 (d) 725 741 3328
  39. 39.🔢 You want to remember the number 2213681316. Which chunked version keeps every digit in the same order? (a) 221 368 3116 (b) 221 368 1316 (c) 221 368 131 (d) 221 136 81316
  40. 40.🔢 You want to remember the number 596762485. Which chunked version keeps every digit in the same order? (a) 596 762 485 (b) 596 724 85 (c) 596 676 2485 (d) 569 762 485

Answer key

  1. 5
  2. 189 981 0867
  3. 269 459 523
  4. 4
  5. 3
  6. three chunks, not ten
  7. 2129 0577 7483
  8. 8
  9. 02/07/1977
  10. 09/01/1985
  11. 20/03/1987
  12. 8141 3390 5901
  13. 15/01/1979
  14. 06/11/2007
  15. splitting into groups
  16. 389 728 0409
  17. 3
  18. 116 386 9119
  19. 25/04/2014
  20. 03/01/2014
  21. 1417 5827 7577
  22. 07/06/1979
  23. 21/03/2024
  24. 6522 3460 7580
  25. 7
  26. 5
  27. 691 595 612
  28. 4
  29. 6
  30. means something to you
  31. 450 864 308
  32. 19/06/2018
  33. 194 876 337
  34. 257 148 8999
  35. 06/02/1989
  36. 290 802 230
  37. 7601 5563 6138
  38. 725 714 3328
  39. 221 368 1316
  40. 596 762 485

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