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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 683 · 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 536791449891. Which chunked version keeps every digit in the same order? (a) 5376 9144 9891 (b) 5367 9144 49891 (c) 3679 1449 891 (d) 5367 9144 9891
  2. 2.🔢 You want to remember the number 100215904. Which chunked version keeps every digit in the same order? (a) 100 215 5904 (b) 100 251 904 (c) 100 215 904 (d) 100 259 04
  3. 3.📅 The digits 25021975 are a date: day, month, year. Which chunking shows the date? (a) 25/02/1975 (b) 2502/19/75 (c) 250/219/75 (d) 25/0219/75
  4. 4.🔢 You want to remember the number 6677841067. Which chunked version keeps every digit in the same order? (a) 667 841 067 (b) 667 784 1067 (c) 667 784 0167 (d) 666 778 41067
  5. 5.📅 The digits 05101965 are a date: day, month, year. Which chunking shows the date? (a) 0510/19/65 (b) 05/1019/65 (c) 05/10/1965 (d) 051/019/65
  6. 6.🔢 You want to remember the number 5500009952. Which chunked version keeps every digit in the same order? (a) 550 009 952 (b) 550 009 0952 (c) 550 000 99952 (d) 550 000 9952
  7. 7.🔢 You want to remember the number 995090443000. Which chunked version keeps every digit in the same order? (a) 9955 0904 43000 (b) 9509 0443 000 (c) 9950 9044 3000 (d) 9950 9044 0300
  8. 8.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
  9. 9.📅 The digits 03021984 are a date: day, month, year. Which chunking shows the date? (a) 030/219/84 (b) 0302/19/84 (c) 03/0219/84 (d) 03/02/1984
  10. 10.📅 The digits 23011951 are a date: day, month, year. Which chunking shows the date? (a) 23/01/1951 (b) 23/0119/51 (c) 2301/19/51 (d) 230/119/51
  11. 11.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) changes daily (d) is very long
  12. 12.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
  13. 13.🔢 You want to remember the number 687452981. Which chunked version keeps every digit in the same order? (a) 687 452 891 (b) 687 452 9981 (c) 874 529 81 (d) 687 452 981
  14. 14.🔢 You want to remember the number 643863360. Which chunked version keeps every digit in the same order? (a) 643 833 60 (b) 643 863 3360 (c) 643 863 630 (d) 643 863 360
  15. 15.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
  16. 16.📅 The digits 11071958 are a date: day, month, year. Which chunking shows the date? (a) 1107/19/58 (b) 11/07/1958 (c) 110/719/58 (d) 11/0719/58
  17. 17.🔢 You want to remember the number 849640585116. Which chunked version keeps every digit in the same order? (a) 8496 4058 516 (b) 8496 4508 5116 (c) 8496 4058 51116 (d) 8496 4058 5116
  18. 18.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
  19. 19.🔢 You want to remember the number 389506912. Which chunked version keeps every digit in the same order? (a) 389 506 12 (b) 389 506 912 (c) 389 506 6912 (d) 398 506 912
  20. 20.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) it has fewer digits (d) three chunks, not ten
  21. 21.📅 The digits 09071970 are a date: day, month, year. Which chunking shows the date? (a) 0907/19/70 (b) 090/719/70 (c) 09/07/1970 (d) 09/0719/70
  22. 22.📅 The digits 07032014 are a date: day, month, year. Which chunking shows the date? (a) 07/03/2014 (b) 070/320/14 (c) 0703/20/14 (d) 07/0320/14
  23. 23.📅 The digits 13112013 are a date: day, month, year. Which chunking shows the date? (a) 13/11/2013 (b) 1311/20/13 (c) 13/1120/13 (d) 131/120/13
  24. 24.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  25. 25.🔢 You want to remember the number 754600312. Which chunked version keeps every digit in the same order? (a) 754 600 312 (b) 756 003 12 (c) 754 460 0312 (d) 756 400 312
  26. 26.📅 The digits 27111954 are a date: day, month, year. Which chunking shows the date? (a) 271/119/54 (b) 27/1119/54 (c) 2711/19/54 (d) 27/11/1954
  27. 27.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  28. 28.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
  29. 29.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 1 9 4 7 (c) 194 and 7 (d) 19 and 47
  30. 30.📅 The digits 17031981 are a date: day, month, year. Which chunking shows the date? (a) 17/0319/81 (b) 170/319/81 (c) 1703/19/81 (d) 17/03/1981
  31. 31.📅 The digits 27072005 are a date: day, month, year. Which chunking shows the date? (a) 27/07/2005 (b) 270/720/05 (c) 2707/20/05 (d) 27/0720/05
  32. 32.🔢 You want to remember the number 875864511399. Which chunked version keeps every digit in the same order? (a) 8758 6445 11399 (b) 8586 4511 399 (c) 7858 6451 1399 (d) 8758 6451 1399
  33. 33.📅 The digits 03102001 are a date: day, month, year. Which chunking shows the date? (a) 03/1020/01 (b) 0310/20/01 (c) 03/10/2001 (d) 031/020/01
  34. 34.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  35. 35.📅 The digits 02031970 are a date: day, month, year. Which chunking shows the date? (a) 020/319/70 (b) 02/0319/70 (c) 02/03/1970 (d) 0203/19/70
  36. 36.📅 The digits 05031968 are a date: day, month, year. Which chunking shows the date? (a) 050/319/68 (b) 05/0319/68 (c) 0503/19/68 (d) 05/03/1968
  37. 37.📅 The digits 21111959 are a date: day, month, year. Which chunking shows the date? (a) 21/1119/59 (b) 2111/19/59 (c) 21/11/1959 (d) 211/119/59
  38. 38.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
  39. 39.🔢 You want to remember the number 1057104103. Which chunked version keeps every digit in the same order? (a) 105 710 4103 (b) 105 571 04103 (c) 105 710 403 (d) 105 710 4013
  40. 40.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?

Answer key

  1. 5367 9144 9891
  2. 100 215 904
  3. 25/02/1975
  4. 667 784 1067
  5. 05/10/1965
  6. 550 000 9952
  7. 9950 9044 3000
  8. 2
  9. 03/02/1984
  10. 23/01/1951
  11. means something to you
  12. 2
  13. 687 452 981
  14. 643 863 360
  15. splitting into groups
  16. 11/07/1958
  17. 8496 4058 5116
  18. 5
  19. 389 506 912
  20. three chunks, not ten
  21. 09/07/1970
  22. 07/03/2014
  23. 13/11/2013
  24. 2
  25. 754 600 312
  26. 27/11/1954
  27. 6
  28. 4
  29. 19 and 47
  30. 17/03/1981
  31. 27/07/2005
  32. 8758 6451 1399
  33. 03/10/2001
  34. 7
  35. 02/03/1970
  36. 05/03/1968
  37. 21/11/1959
  38. 5
  39. 105 710 4103
  40. 4

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