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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 138 · 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 802884661. Which chunked version keeps every digit in the same order? (a) 808 846 61 (b) 802 884 616 (c) 802 884 6661 (d) 802 884 661
  2. 2.📅 The digits 08042011 are a date: day, month, year. Which chunking shows the date? (a) 08/0420/11 (b) 08/04/2011 (c) 080/420/11 (d) 0804/20/11
  3. 3.📅 The digits 03022000 are a date: day, month, year. Which chunking shows the date? (a) 0302/20/00 (b) 03/0220/00 (c) 03/02/2000 (d) 030/220/00
  4. 4.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) three chunks, not ten (d) it has fewer digits
  5. 5.🔢 You want to remember the number 906110597. Which chunked version keeps every digit in the same order? (a) 096 110 597 (b) 906 110 597 (c) 900 611 0597 (d) 061 105 97
  6. 6.🔢 You want to remember the number 8683401909. Which chunked version keeps every digit in the same order? (a) 868 340 19909 (b) 868 430 1909 (c) 683 401 909 (d) 868 340 1909
  7. 7.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  8. 8.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
  9. 9.🔢 You want to remember the number 7158612405. Which chunked version keeps every digit in the same order? (a) 715 862 405 (b) 715 861 2405 (c) 715 886 12405 (d) 718 561 2405
  10. 10.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  11. 11.🔢 You want to remember the number 708512375721. Which chunked version keeps every digit in the same order? (a) 0785 1237 5721 (b) 7085 1237 5721 (c) 7051 2375 721 (d) 7085 1237 75721
  12. 12.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  13. 13.🔢 You want to remember the number 286957122830. Which chunked version keeps every digit in the same order? (a) 2896 5712 2830 (b) 2869 5712 22830 (c) 2869 5712 2830 (d) 2869 5722 830
  14. 14.📅 The digits 12062016 are a date: day, month, year. Which chunking shows the date? (a) 12/0620/16 (b) 1206/20/16 (c) 12/06/2016 (d) 120/620/16
  15. 15.🔢 You want to remember the number 942571126. Which chunked version keeps every digit in the same order? (a) 942 571 12 (b) 942 571 162 (c) 942 557 1126 (d) 942 571 126
  16. 16.🔢 Chunking works for… (a) only pictures (b) numbers and letter lists (c) nothing at all (d) only numbers
  17. 17.🔢 You want to remember the number 366463357. Which chunked version keeps every digit in the same order? (a) 366 643 357 (b) 366 646 3357 (c) 364 633 57 (d) 366 463 357
  18. 18.🔢 You want to remember the number 124276202. Which chunked version keeps every digit in the same order? (a) 124 276 20 (b) 124 276 6202 (c) 124 276 202 (d) 122 476 202
  19. 19.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  20. 20.🔢 You want to remember the number 7041918175. Which chunked version keeps every digit in the same order? (a) 704 119 8175 (b) 704 191 175 (c) 704 191 81175 (d) 704 191 8175
  21. 21.🔢 You want to remember the number 995281173. Which chunked version keeps every digit in the same order? (a) 995 281 713 (b) 995 281 173 (c) 995 281 1773 (d) 952 811 73
  22. 22.🔢 You want to remember the number 826295146343. Which chunked version keeps every digit in the same order? (a) 8262 9514 6343 (b) 2629 5146 343 (c) 8262 9514 46343 (d) 8269 2514 6343
  23. 23.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
  24. 24.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  25. 25.🔢 You want to remember the number 4478244491. Which chunked version keeps every digit in the same order? (a) 474 824 4491 (b) 447 824 449 (c) 447 824 4491 (d) 447 882 44491
  26. 26.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
  27. 27.🔢 You want to remember the number 370746590. Which chunked version keeps every digit in the same order? (a) 370 746 6590 (b) 370 746 90 (c) 307 746 590 (d) 370 746 590
  28. 28.📅 The digits 07012025 are a date: day, month, year. Which chunking shows the date? (a) 070/120/25 (b) 07/0120/25 (c) 07/01/2025 (d) 0701/20/25
  29. 29.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  30. 30.🔢 You want to remember the number 550270000. Which chunked version keeps every digit in the same order? (a) 550 207 000 (b) 550 227 0000 (c) 550 270 000 (d) 550 270 00
  31. 31.📅 The digits 22091974 are a date: day, month, year. Which chunking shows the date? (a) 220/919/74 (b) 22/0919/74 (c) 22/09/1974 (d) 2209/19/74
  32. 32.📅 The digits 15121976 are a date: day, month, year. Which chunking shows the date? (a) 1512/19/76 (b) 151/219/76 (c) 15/1219/76 (d) 15/12/1976
  33. 33.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
  34. 34.🔢 What is chunking? (a) splitting into groups (b) writing it twice (c) reading very fast (d) saying it backwards
  35. 35.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
  36. 36.🔢 You want to remember the number 9011110098. Which chunked version keeps every digit in the same order? (a) 901 111 0908 (b) 901 111 0098 (c) 901 110 098 (d) 901 111 00098
  37. 37.🔢 You want to remember the number 177240415. Which chunked version keeps every digit in the same order? (a) 177 244 0415 (b) 177 240 451 (c) 772 404 15 (d) 177 240 415
  38. 38.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
  39. 39.🔢 You want to remember the number 7118810928. Which chunked version keeps every digit in the same order? (a) 711 881 028 (b) 711 188 10928 (c) 711 881 0982 (d) 711 881 0928
  40. 40.🔢 You want to remember the number 197922981. Which chunked version keeps every digit in the same order? (a) 197 929 281 (b) 197 922 981 (c) 197 792 2981 (d) 197 922 98

Answer key

  1. 802 884 661
  2. 08/04/2011
  3. 03/02/2000
  4. three chunks, not ten
  5. 906 110 597
  6. 868 340 1909
  7. 5
  8. 2
  9. 715 861 2405
  10. 8
  11. 7085 1237 5721
  12. 4
  13. 2869 5712 2830
  14. 12/06/2016
  15. 942 571 126
  16. numbers and letter lists
  17. 366 463 357
  18. 124 276 202
  19. 3
  20. 704 191 8175
  21. 995 281 173
  22. 8262 9514 6343
  23. 5
  24. 4
  25. 447 824 4491
  26. 5
  27. 370 746 590
  28. 07/01/2025
  29. 7
  30. 550 270 000
  31. 22/09/1974
  32. 15/12/1976
  33. 19 and 47
  34. splitting into groups
  35. 5
  36. 901 111 0098
  37. 177 240 415
  38. means something to you
  39. 711 881 0928
  40. 197 922 981

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