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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 859 · 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.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) writing it twice (d) splitting into groups
  2. 2.📅 The digits 24071981 are a date: day, month, year. Which chunking shows the date? (a) 24/07/1981 (b) 2407/19/81 (c) 240/719/81 (d) 24/0719/81
  3. 3.📅 The digits 04111969 are a date: day, month, year. Which chunking shows the date? (a) 041/119/69 (b) 04/1119/69 (c) 0411/19/69 (d) 04/11/1969
  4. 4.🔢 You want to remember the number 3961843237. Which chunked version keeps every digit in the same order? (a) 396 184 2337 (b) 396 184 3237 (c) 396 188 43237 (d) 961 843 237
  5. 5.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  6. 6.🔢 You want to remember the number 9751614077. Which chunked version keeps every digit in the same order? (a) 975 161 4707 (b) 975 161 4077 (c) 975 161 407 (d) 975 516 14077
  7. 7.🔢 You want to remember the number 707750210851. Which chunked version keeps every digit in the same order? (a) 7077 5210 851 (b) 7077 5012 0851 (c) 7077 5502 10851 (d) 7077 5021 0851
  8. 8.🔢 You want to remember the number 2052005069. Which chunked version keeps every digit in the same order? (a) 205 200 5609 (b) 205 200 5069 (c) 052 005 069 (d) 220 520 05069
  9. 9.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  10. 10.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  11. 11.🔢 You want to remember the number 784424637. Which chunked version keeps every digit in the same order? (a) 784 424 673 (b) 784 424 637 (c) 784 424 6377 (d) 784 246 37
  12. 12.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  13. 13.📅 The digits 08091970 are a date: day, month, year. Which chunking shows the date? (a) 080/919/70 (b) 08/0919/70 (c) 0809/19/70 (d) 08/09/1970
  14. 14.🔢 Chunking works for… (a) only numbers (b) only pictures (c) numbers and letter lists (d) nothing at all
  15. 15.📅 The digits 24071951 are a date: day, month, year. Which chunking shows the date? (a) 24/0719/51 (b) 2407/19/51 (c) 24/07/1951 (d) 240/719/51
  16. 16.🔢 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
  17. 17.🔢 You want to remember the number 3115530381. Which chunked version keeps every digit in the same order? (a) 311 553 30381 (b) 311 550 381 (c) 311 553 0381 (d) 311 550 3381
  18. 18.📅 The digits 05061989 are a date: day, month, year. Which chunking shows the date? (a) 050/619/89 (b) 05/0619/89 (c) 0506/19/89 (d) 05/06/1989
  19. 19.🔢 You want to remember the number 169152702. Which chunked version keeps every digit in the same order? (a) 169 512 702 (b) 169 157 02 (c) 169 152 7022 (d) 169 152 702
  20. 20.🔢 You want to remember the number 318530654. Which chunked version keeps every digit in the same order? (a) 385 306 54 (b) 318 530 654 (c) 318 350 654 (d) 318 530 6554
  21. 21.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
  22. 22.📅 The digits 15051954 are a date: day, month, year. Which chunking shows the date? (a) 15/0519/54 (b) 1505/19/54 (c) 15/05/1954 (d) 150/519/54
  23. 23.🔢 You want to remember the number 7852241265. Which chunked version keeps every digit in the same order? (a) 782 241 265 (b) 785 224 1265 (c) 785 224 1256 (d) 785 222 41265
  24. 24.📅 The digits 15031969 are a date: day, month, year. Which chunking shows the date? (a) 15/03/1969 (b) 150/319/69 (c) 15/0319/69 (d) 1503/19/69
  25. 25.📅 The digits 13031967 are a date: day, month, year. Which chunking shows the date? (a) 1303/19/67 (b) 130/319/67 (c) 13/0319/67 (d) 13/03/1967
  26. 26.📅 The digits 28042016 are a date: day, month, year. Which chunking shows the date? (a) 280/420/16 (b) 2804/20/16 (c) 28/04/2016 (d) 28/0420/16
  27. 27.📅 The digits 05121954 are a date: day, month, year. Which chunking shows the date? (a) 0512/19/54 (b) 051/219/54 (c) 05/1219/54 (d) 05/12/1954
  28. 28.🔢 You want to remember the number 484925483. Which chunked version keeps every digit in the same order? (a) 484 952 483 (b) 484 992 5483 (c) 484 924 83 (d) 484 925 483
  29. 29.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  30. 30.📅 The digits 05082011 are a date: day, month, year. Which chunking shows the date? (a) 05/08/2011 (b) 050/820/11 (c) 0508/20/11 (d) 05/0820/11
  31. 31.🔢 You want to remember the number 755036594452. Which chunked version keeps every digit in the same order? (a) 7550 3659 4452 (b) 7550 3659 44522 (c) 7553 0659 4452 (d) 7550 3654 452
  32. 32.📅 The digits 27061952 are a date: day, month, year. Which chunking shows the date? (a) 270/619/52 (b) 2706/19/52 (c) 27/06/1952 (d) 27/0619/52
  33. 33.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  34. 34.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  35. 35.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
  36. 36.📅 The digits 04011958 are a date: day, month, year. Which chunking shows the date? (a) 04/0119/58 (b) 0401/19/58 (c) 040/119/58 (d) 04/01/1958
  37. 37.🔢 You want to remember the number 648110027173. Which chunked version keeps every digit in the same order? (a) 6418 1002 7173 (b) 6481 1002 717 (c) 6648 1100 27173 (d) 6481 1002 7173
  38. 38.🔢 You want to remember the number 768512754947. Which chunked version keeps every digit in the same order? (a) 7685 5127 54947 (b) 7685 2175 4947 (c) 7681 2754 947 (d) 7685 1275 4947
  39. 39.🔢 You want to remember the number 508475408. Which chunked version keeps every digit in the same order? (a) 508 475 408 (b) 508 847 5408 (c) 058 475 408 (d) 508 454 08
  40. 40.🔢 You want to remember the number 238482832. Which chunked version keeps every digit in the same order? (a) 238 482 8832 (b) 238 482 832 (c) 283 482 832 (d) 238 482 83

Answer key

  1. splitting into groups
  2. 24/07/1981
  3. 04/11/1969
  4. 396 184 3237
  5. 7
  6. 975 161 4077
  7. 7077 5021 0851
  8. 205 200 5069
  9. 2
  10. 6
  11. 784 424 637
  12. 8
  13. 08/09/1970
  14. numbers and letter lists
  15. 24/07/1951
  16. three chunks, not ten
  17. 311 553 0381
  18. 05/06/1989
  19. 169 152 702
  20. 318 530 654
  21. 19 and 47
  22. 15/05/1954
  23. 785 224 1265
  24. 15/03/1969
  25. 13/03/1967
  26. 28/04/2016
  27. 05/12/1954
  28. 484 925 483
  29. 9
  30. 05/08/2011
  31. 7550 3659 4452
  32. 27/06/1952
  33. 6
  34. 5
  35. 3
  36. 04/01/1958
  37. 6481 1002 7173
  38. 7685 1275 4947
  39. 508 475 408
  40. 238 482 832

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