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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 51 · 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.📅 The digits 02012007 are a date: day, month, year. Which chunking shows the date? (a) 0201/20/07 (b) 02/01/2007 (c) 020/120/07 (d) 02/0120/07
  2. 2.🔢 You want to remember the number 8199313882. Which chunked version keeps every digit in the same order? (a) 819 313 882 (b) 811 993 13882 (c) 819 931 3882 (d) 189 931 3882
  3. 3.📅 The digits 05042024 are a date: day, month, year. Which chunking shows the date? (a) 05/0420/24 (b) 05/04/2024 (c) 050/420/24 (d) 0504/20/24
  4. 4.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is a smaller number (d) it is printed bigger
  5. 5.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  6. 6.📅 The digits 02122025 are a date: day, month, year. Which chunking shows the date? (a) 021/220/25 (b) 0212/20/25 (c) 02/12/2025 (d) 02/1220/25
  7. 7.📅 The digits 04121978 are a date: day, month, year. Which chunking shows the date? (a) 04/1219/78 (b) 0412/19/78 (c) 041/219/78 (d) 04/12/1978
  8. 8.📅 The digits 27111958 are a date: day, month, year. Which chunking shows the date? (a) 27/11/1958 (b) 271/119/58 (c) 27/1119/58 (d) 2711/19/58
  9. 9.🔢 You want to remember the number 943104628. Which chunked version keeps every digit in the same order? (a) 943 104 628 (b) 943 146 28 (c) 943 100 4628 (d) 943 014 628
  10. 10.🔢 You want to remember the number 3874201936. Which chunked version keeps every digit in the same order? (a) 387 420 1936 (b) 388 742 01936 (c) 384 201 936 (d) 387 420 1963
  11. 11.📅 The digits 15071996 are a date: day, month, year. Which chunking shows the date? (a) 15/07/1996 (b) 1507/19/96 (c) 150/719/96 (d) 15/0719/96
  12. 12.📅 The digits 25071955 are a date: day, month, year. Which chunking shows the date? (a) 25/07/1955 (b) 2507/19/55 (c) 250/719/55 (d) 25/0719/55
  13. 13.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
  14. 14.🔢 You want to remember the number 463241602. Which chunked version keeps every digit in the same order? (a) 463 241 602 (b) 432 416 02 (c) 463 241 062 (d) 463 241 1602
  15. 15.🔢 You want to remember the number 330526150. Which chunked version keeps every digit in the same order? (a) 330 526 1150 (b) 330 562 150 (c) 330 261 50 (d) 330 526 150
  16. 16.📅 The digits 15032014 are a date: day, month, year. Which chunking shows the date? (a) 15/0320/14 (b) 1503/20/14 (c) 15/03/2014 (d) 150/320/14
  17. 17.🔢 You want to remember the number 183712752670. Which chunked version keeps every digit in the same order? (a) 1837 2752 670 (b) 1837 1725 2670 (c) 1837 1275 26670 (d) 1837 1275 2670
  18. 18.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  19. 19.🔢 You want to remember the number 735805545. Which chunked version keeps every digit in the same order? (a) 735 805 455 (b) 735 805 545 (c) 733 580 5545 (d) 735 855 45
  20. 20.🔢 You want to remember the number 710579269. Which chunked version keeps every digit in the same order? (a) 710 597 269 (b) 710 572 69 (c) 710 577 9269 (d) 710 579 269
  21. 21.🔢 You want to remember the number 561412164142. Which chunked version keeps every digit in the same order? (a) 5614 4121 64142 (b) 5164 1216 4142 (c) 5614 1214 142 (d) 5614 1216 4142
  22. 22.📅 The digits 13082010 are a date: day, month, year. Which chunking shows the date? (a) 130/820/10 (b) 1308/20/10 (c) 13/08/2010 (d) 13/0820/10
  23. 23.🔢 You want to remember the number 551101260287. Which chunked version keeps every digit in the same order? (a) 5511 0126 0278 (b) 5511 0126 02287 (c) 5510 1260 287 (d) 5511 0126 0287
  24. 24.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
  25. 25.🔢 You want to remember the number 963658262. Which chunked version keeps every digit in the same order? (a) 963 658 22 (b) 963 658 226 (c) 963 658 8262 (d) 963 658 262
  26. 26.🔢 You want to remember the number 379674216. Which chunked version keeps every digit in the same order? (a) 379 742 16 (b) 739 674 216 (c) 379 674 2166 (d) 379 674 216
  27. 27.📅 The digits 10081964 are a date: day, month, year. Which chunking shows the date? (a) 10/08/1964 (b) 1008/19/64 (c) 100/819/64 (d) 10/0819/64
  28. 28.📅 The digits 07091970 are a date: day, month, year. Which chunking shows the date? (a) 0709/19/70 (b) 070/919/70 (c) 07/09/1970 (d) 07/0919/70
  29. 29.🔢 You want to remember the number 730129116786. Which chunked version keeps every digit in the same order? (a) 7301 2911 786 (b) 7301 2911 6786 (c) 7310 2911 6786 (d) 7301 2911 67886
  30. 30.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
  31. 31.🔢 You want to remember the number 4416148760. Which chunked version keeps every digit in the same order? (a) 441 614 8670 (b) 441 614 860 (c) 441 614 8760 (d) 441 611 48760
  32. 32.📅 The digits 19081997 are a date: day, month, year. Which chunking shows the date? (a) 19/08/1997 (b) 190/819/97 (c) 19/0819/97 (d) 1908/19/97
  33. 33.🔢 You want to remember the number 5331850482. Which chunked version keeps every digit in the same order? (a) 533 185 048 (b) 533 188 50482 (c) 533 158 0482 (d) 533 185 0482
  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 672325525. Which chunked version keeps every digit in the same order? (a) 672 325 5525 (b) 672 325 525 (c) 672 325 25 (d) 673 225 525
  36. 36.🔢 You want to remember the number 263457440133. Which chunked version keeps every digit in the same order? (a) 2634 4574 40133 (b) 2645 7440 133 (c) 2643 5744 0133 (d) 2634 5744 0133
  37. 37.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
  38. 38.🔢 You want to remember the number 979028198165. Which chunked version keeps every digit in the same order? (a) 9970 2819 8165 (b) 9790 2898 165 (c) 9790 2811 98165 (d) 9790 2819 8165
  39. 39.📅 The digits 02012017 are a date: day, month, year. Which chunking shows the date? (a) 0201/20/17 (b) 02/0120/17 (c) 020/120/17 (d) 02/01/2017
  40. 40.🔢 You want to remember the number 560154143. Which chunked version keeps every digit in the same order? (a) 650 154 143 (b) 601 541 43 (c) 560 115 4143 (d) 560 154 143

Answer key

  1. 02/01/2007
  2. 819 931 3882
  3. 05/04/2024
  4. three chunks, not ten
  5. 9
  6. 02/12/2025
  7. 04/12/1978
  8. 27/11/1958
  9. 943 104 628
  10. 387 420 1936
  11. 15/07/1996
  12. 25/07/1955
  13. numbers and letter lists
  14. 463 241 602
  15. 330 526 150
  16. 15/03/2014
  17. 1837 1275 2670
  18. 8
  19. 735 805 545
  20. 710 579 269
  21. 5614 1216 4142
  22. 13/08/2010
  23. 5511 0126 0287
  24. 2
  25. 963 658 262
  26. 379 674 216
  27. 10/08/1964
  28. 07/09/1970
  29. 7301 2911 6786
  30. 5
  31. 441 614 8760
  32. 19/08/1997
  33. 533 185 0482
  34. splitting into groups
  35. 672 325 525
  36. 2634 5744 0133
  37. 5
  38. 9790 2819 8165
  39. 02/01/2017
  40. 560 154 143

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