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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 714 · 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 547572347597. Which chunked version keeps every digit in the same order? (a) 5475 7234 759 (b) 5475 7234 7597 (c) 5475 7234 7957 (d) 5475 7234 75597
  2. 2.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) splitting into groups (d) saying it backwards
  3. 3.🔢 You want to remember the number 898565009. Which chunked version keeps every digit in the same order? (a) 898 560 09 (b) 898 565 009 (c) 898 556 5009 (d) 898 655 009
  4. 4.🔢 You want to remember the number 787500188693. Which chunked version keeps every digit in the same order? (a) 7875 0081 8693 (b) 7877 5001 88693 (c) 7875 0018 869 (d) 7875 0018 8693
  5. 5.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) is very long (d) has no pattern
  6. 6.📅 The digits 20051966 are a date: day, month, year. Which chunking shows the date? (a) 2005/19/66 (b) 20/05/1966 (c) 20/0519/66 (d) 200/519/66
  7. 7.🔢 You want to remember the number 604468541115. Which chunked version keeps every digit in the same order? (a) 6044 6854 115 (b) 6044 6854 41115 (c) 6046 4854 1115 (d) 6044 6854 1115
  8. 8.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) three chunks, not ten (d) it is a smaller number
  9. 9.📅 The digits 27101959 are a date: day, month, year. Which chunking shows the date? (a) 2710/19/59 (b) 27/1019/59 (c) 271/019/59 (d) 27/10/1959
  10. 10.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 19 and 47 (d) 1 and 947
  11. 11.📅 The digits 23032012 are a date: day, month, year. Which chunking shows the date? (a) 23/03/2012 (b) 230/320/12 (c) 23/0320/12 (d) 2303/20/12
  12. 12.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) nothing at all (d) only pictures
  13. 13.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  14. 14.🔢 You want to remember the number 5383672243. Which chunked version keeps every digit in the same order? (a) 538 367 2243 (b) 358 367 2243 (c) 538 836 72243 (d) 383 672 243
  15. 15.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  16. 16.🔢 You want to remember the number 719331220. Which chunked version keeps every digit in the same order? (a) 719 331 1220 (b) 719 332 120 (c) 719 331 220 (d) 719 312 20
  17. 17.🔢 You want to remember the number 310331560. Which chunked version keeps every digit in the same order? (a) 311 033 1560 (b) 310 313 560 (c) 310 331 60 (d) 310 331 560
  18. 18.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  19. 19.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  20. 20.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
  21. 21.🔢 You want to remember the number 848525272. Which chunked version keeps every digit in the same order? (a) 848 522 72 (b) 848 525 227 (c) 848 552 5272 (d) 848 525 272
  22. 22.🔢 You want to remember the number 5112534856. Which chunked version keeps every digit in the same order? (a) 151 253 4856 (b) 511 255 34856 (c) 512 534 856 (d) 511 253 4856
  23. 23.🔢 You want to remember the number 625717104220. Which chunked version keeps every digit in the same order? (a) 6257 7110 4220 (b) 6257 1710 4220 (c) 6257 7171 04220 (d) 6257 1104 220
  24. 24.🔢 You want to remember the number 839914167. Which chunked version keeps every digit in the same order? (a) 833 991 4167 (b) 399 141 67 (c) 839 914 167 (d) 839 914 617
  25. 25.🔢 You want to remember the number 323514740433. Which chunked version keeps every digit in the same order? (a) 3235 1474 0433 (b) 3235 1147 40433 (c) 3235 1740 433 (d) 3253 1474 0433
  26. 26.🔢 You want to remember the number 5378489249. Which chunked version keeps every digit in the same order? (a) 537 848 89249 (b) 573 848 9249 (c) 538 489 249 (d) 537 848 9249
  27. 27.🔢 You want to remember the number 528431811618. Which chunked version keeps every digit in the same order? (a) 5284 3181 11618 (b) 5284 3181 1168 (c) 5284 3181 168 (d) 5284 3181 1618
  28. 28.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  29. 29.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  30. 30.📅 The digits 12121965 are a date: day, month, year. Which chunking shows the date? (a) 1212/19/65 (b) 121/219/65 (c) 12/12/1965 (d) 12/1219/65
  31. 31.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  32. 32.🔢 You want to remember the number 2557238934. Which chunked version keeps every digit in the same order? (a) 255 723 834 (b) 255 722 38934 (c) 525 723 8934 (d) 255 723 8934
  33. 33.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
  34. 34.🔢 You want to remember the number 8693985929. Which chunked version keeps every digit in the same order? (a) 866 939 85929 (b) 869 985 929 (c) 869 398 5929 (d) 863 998 5929
  35. 35.📅 The digits 02012020 are a date: day, month, year. Which chunking shows the date? (a) 02/0120/20 (b) 0201/20/20 (c) 02/01/2020 (d) 020/120/20
  36. 36.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
  37. 37.📅 The digits 02072022 are a date: day, month, year. Which chunking shows the date? (a) 02/0720/22 (b) 020/720/22 (c) 02/07/2022 (d) 0207/20/22
  38. 38.📅 The digits 11052003 are a date: day, month, year. Which chunking shows the date? (a) 1105/20/03 (b) 110/520/03 (c) 11/05/2003 (d) 11/0520/03
  39. 39.🔢 You want to remember the number 5181533036. Which chunked version keeps every digit in the same order? (a) 518 153 33036 (b) 518 135 3036 (c) 581 533 036 (d) 518 153 3036
  40. 40.🔢 You want to remember the number 810659897. Which chunked version keeps every digit in the same order? (a) 810 659 8977 (b) 810 658 97 (c) 801 659 897 (d) 810 659 897

Answer key

  1. 5475 7234 7597
  2. splitting into groups
  3. 898 565 009
  4. 7875 0018 8693
  5. means something to you
  6. 20/05/1966
  7. 6044 6854 1115
  8. three chunks, not ten
  9. 27/10/1959
  10. 19 and 47
  11. 23/03/2012
  12. numbers and letter lists
  13. 2
  14. 538 367 2243
  15. 6
  16. 719 331 220
  17. 310 331 560
  18. 8
  19. 7
  20. 2
  21. 848 525 272
  22. 511 253 4856
  23. 6257 1710 4220
  24. 839 914 167
  25. 3235 1474 0433
  26. 537 848 9249
  27. 5284 3181 1618
  28. 6
  29. 7
  30. 12/12/1965
  31. 5
  32. 255 723 8934
  33. 4
  34. 869 398 5929
  35. 02/01/2020
  36. 3
  37. 02/07/2022
  38. 11/05/2003
  39. 518 153 3036
  40. 810 659 897

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