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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 433 · 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 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  2. 2.📅 The digits 12091957 are a date: day, month, year. Which chunking shows the date? (a) 1209/19/57 (b) 12/0919/57 (c) 12/09/1957 (d) 120/919/57
  3. 3.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) nothing at all (d) only pictures
  4. 4.🔢 You want to remember the number 9913487386. Which chunked version keeps every digit in the same order? (a) 991 348 7836 (b) 991 348 77386 (c) 993 487 386 (d) 991 348 7386
  5. 5.🔢 You want to remember the number 9084495041. Which chunked version keeps every digit in the same order? (a) 980 449 5041 (b) 908 449 95041 (c) 908 449 5041 (d) 084 495 041
  6. 6.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  7. 7.🔢 A chunk is easiest to keep when it… (a) changes daily (b) is very long (c) has no pattern (d) means something to you
  8. 8.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) three chunks, not ten (d) it has fewer digits
  9. 9.📅 The digits 23052004 are a date: day, month, year. Which chunking shows the date? (a) 23/05/2004 (b) 2305/20/04 (c) 23/0520/04 (d) 230/520/04
  10. 10.🔢 You want to remember the number 4781842197. Which chunked version keeps every digit in the same order? (a) 478 184 2179 (b) 478 184 21197 (c) 478 184 219 (d) 478 184 2197
  11. 11.📅 The digits 04052006 are a date: day, month, year. Which chunking shows the date? (a) 040/520/06 (b) 04/0520/06 (c) 0405/20/06 (d) 04/05/2006
  12. 12.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  13. 13.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
  14. 14.📅 The digits 14082024 are a date: day, month, year. Which chunking shows the date? (a) 14/0820/24 (b) 1408/20/24 (c) 14/08/2024 (d) 140/820/24
  15. 15.🔢 You want to remember the number 213289087. Which chunked version keeps every digit in the same order? (a) 132 890 87 (b) 213 328 9087 (c) 213 289 087 (d) 213 829 087
  16. 16.📅 The digits 07072005 are a date: day, month, year. Which chunking shows the date? (a) 07/0720/05 (b) 070/720/05 (c) 0707/20/05 (d) 07/07/2005
  17. 17.📅 The digits 03092016 are a date: day, month, year. Which chunking shows the date? (a) 03/0920/16 (b) 030/920/16 (c) 03/09/2016 (d) 0309/20/16
  18. 18.🔢 You want to remember the number 235755200259. Which chunked version keeps every digit in the same order? (a) 2357 5520 0259 (b) 2355 5200 259 (c) 2375 5520 0259 (d) 2357 5520 00259
  19. 19.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
  20. 20.🔢 You want to remember the number 754193795167. Which chunked version keeps every digit in the same order? (a) 7514 9379 5167 (b) 7541 9379 5167 (c) 7541 9337 95167 (d) 7541 9379 567
  21. 21.🔢 You want to remember the number 3935536690. Which chunked version keeps every digit in the same order? (a) 935 536 690 (b) 393 553 66690 (c) 393 553 6690 (d) 933 553 6690
  22. 22.📅 The digits 02091972 are a date: day, month, year. Which chunking shows the date? (a) 0209/19/72 (b) 02/0919/72 (c) 02/09/1972 (d) 020/919/72
  23. 23.📅 The digits 25011982 are a date: day, month, year. Which chunking shows the date? (a) 2501/19/82 (b) 25/0119/82 (c) 250/119/82 (d) 25/01/1982
  24. 24.🔢 You want to remember the number 9092723720. Which chunked version keeps every digit in the same order? (a) 909 272 3270 (b) 909 723 720 (c) 909 272 3720 (d) 909 272 37720
  25. 25.📅 The digits 12091975 are a date: day, month, year. Which chunking shows the date? (a) 1209/19/75 (b) 120/919/75 (c) 12/0919/75 (d) 12/09/1975
  26. 26.📅 The digits 25052024 are a date: day, month, year. Which chunking shows the date? (a) 25/05/2024 (b) 25/0520/24 (c) 2505/20/24 (d) 250/520/24
  27. 27.🔢 You want to remember the number 7210268990. Which chunked version keeps every digit in the same order? (a) 720 126 8990 (b) 721 026 89990 (c) 721 026 8990 (d) 720 268 990
  28. 28.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
  29. 29.🔢 You want to remember the number 705547317. Which chunked version keeps every digit in the same order? (a) 705 547 3177 (b) 705 547 31 (c) 705 547 317 (d) 705 457 317
  30. 30.🔢 You want to remember the number 811899170068. Which chunked version keeps every digit in the same order? (a) 8189 9170 068 (b) 8118 9917 0068 (c) 8118 9917 00068 (d) 8118 9917 0608
  31. 31.📅 The digits 04052003 are a date: day, month, year. Which chunking shows the date? (a) 040/520/03 (b) 0405/20/03 (c) 04/05/2003 (d) 04/0520/03
  32. 32.📅 The digits 19041954 are a date: day, month, year. Which chunking shows the date? (a) 19/04/1954 (b) 1904/19/54 (c) 190/419/54 (d) 19/0419/54
  33. 33.🔢 You want to remember the number 7846493849. Which chunked version keeps every digit in the same order? (a) 784 693 849 (b) 788 464 93849 (c) 784 649 3849 (d) 748 649 3849
  34. 34.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) writing it twice (d) saying it backwards
  35. 35.🔢 You want to remember the number 663140130. Which chunked version keeps every digit in the same order? (a) 663 410 130 (b) 663 140 1330 (c) 631 401 30 (d) 663 140 130
  36. 36.🔢 You want to remember the number 1961306164. Which chunked version keeps every digit in the same order? (a) 191 306 164 (b) 196 113 06164 (c) 196 130 6164 (d) 196 130 6146
  37. 37.🔢 You want to remember the number 487280000. Which chunked version keeps every digit in the same order? (a) 472 800 00 (b) 448 728 0000 (c) 487 280 000 (d) 847 280 000
  38. 38.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 and 947 (d) 1 9 4 7
  39. 39.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  40. 40.🔢 You want to remember the number 602861031. Which chunked version keeps every digit in the same order? (a) 062 861 031 (b) 602 886 1031 (c) 602 861 031 (d) 602 861 03

Answer key

  1. 7
  2. 12/09/1957
  3. numbers and letter lists
  4. 991 348 7386
  5. 908 449 5041
  6. 4
  7. means something to you
  8. three chunks, not ten
  9. 23/05/2004
  10. 478 184 2197
  11. 04/05/2006
  12. 7
  13. 5
  14. 14/08/2024
  15. 213 289 087
  16. 07/07/2005
  17. 03/09/2016
  18. 2357 5520 0259
  19. 3
  20. 7541 9379 5167
  21. 393 553 6690
  22. 02/09/1972
  23. 25/01/1982
  24. 909 272 3720
  25. 12/09/1975
  26. 25/05/2024
  27. 721 026 8990
  28. 3
  29. 705 547 317
  30. 8118 9917 0068
  31. 04/05/2003
  32. 19/04/1954
  33. 784 649 3849
  34. splitting into groups
  35. 663 140 130
  36. 196 130 6164
  37. 487 280 000
  38. 19 and 47
  39. 5
  40. 602 861 031

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