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Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 29 · 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 903035815290. Which chunked version keeps every digit in the same order? (a) 9033 0581 5290 (b) 9030 5815 290 (c) 9030 0358 15290 (d) 9030 3581 5290
  2. 2.📅 The digits 28041952 are a date: day, month, year. Which chunking shows the date? (a) 28/04/1952 (b) 280/419/52 (c) 2804/19/52 (d) 28/0419/52
  3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
  4. 4.🔢 You want to remember the number 238050188. Which chunked version keeps every digit in the same order? (a) 238 001 88 (b) 238 050 188 (c) 238 050 1888 (d) 238 500 188
  5. 5.🔢 You want to remember the number 9017304624. Which chunked version keeps every digit in the same order? (a) 907 304 624 (b) 901 730 4624 (c) 901 703 4624 (d) 901 730 04624
  6. 6.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
  7. 7.📅 The digits 20081951 are a date: day, month, year. Which chunking shows the date? (a) 20/0819/51 (b) 2008/19/51 (c) 20/08/1951 (d) 200/819/51
  8. 8.🔢 You want to remember the number 7584979869. Which chunked version keeps every digit in the same order? (a) 758 497 869 (b) 758 497 98869 (c) 758 497 9869 (d) 578 497 9869
  9. 9.🔢 You want to remember the number 229568555. Which chunked version keeps every digit in the same order? (a) 229 586 555 (b) 229 568 555 (c) 229 568 55 (d) 222 956 8555
  10. 10.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
  11. 11.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
  12. 12.🔢 You want to remember the number 826590209721. Which chunked version keeps every digit in the same order? (a) 8265 0209 721 (b) 8265 9002 09721 (c) 8265 9020 9721 (d) 2865 9020 9721
  13. 13.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) reading very fast (d) writing it twice
  14. 14.🔢 You want to remember the number 224538522. Which chunked version keeps every digit in the same order? (a) 224 535 822 (b) 224 538 52 (c) 224 538 5222 (d) 224 538 522
  15. 15.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  16. 16.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
  17. 17.🔢 You want to remember the number 581946199. Which chunked version keeps every digit in the same order? (a) 581 194 6199 (b) 581 946 199 (c) 851 946 199 (d) 581 946 19
  18. 18.📅 The digits 22121964 are a date: day, month, year. Which chunking shows the date? (a) 22/1219/64 (b) 2212/19/64 (c) 221/219/64 (d) 22/12/1964
  19. 19.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
  20. 20.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
  21. 21.📅 The digits 13031969 are a date: day, month, year. Which chunking shows the date? (a) 1303/19/69 (b) 130/319/69 (c) 13/0319/69 (d) 13/03/1969
  22. 22.📅 The digits 17071990 are a date: day, month, year. Which chunking shows the date? (a) 170/719/90 (b) 1707/19/90 (c) 17/07/1990 (d) 17/0719/90
  23. 23.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  24. 24.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 1 9 4 7 (d) 19 and 47
  25. 25.🔢 You want to remember the number 950150707928. Which chunked version keeps every digit in the same order? (a) 9501 5070 77928 (b) 9501 5070 7928 (c) 9515 0707 928 (d) 9501 5077 0928
  26. 26.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
  27. 27.🔢 You want to remember the number 904748430841. Which chunked version keeps every digit in the same order? (a) 9004 7484 30841 (b) 9047 4843 081 (c) 9407 4843 0841 (d) 9047 4843 0841
  28. 28.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) means something to you (d) is very long
  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 18072014 are a date: day, month, year. Which chunking shows the date? (a) 1807/20/14 (b) 180/720/14 (c) 18/0720/14 (d) 18/07/2014
  31. 31.📅 The digits 12081970 are a date: day, month, year. Which chunking shows the date? (a) 120/819/70 (b) 12/08/1970 (c) 12/0819/70 (d) 1208/19/70
  32. 32.🔢 You want to remember the number 348502207. Which chunked version keeps every digit in the same order? (a) 348 502 027 (b) 485 022 07 (c) 348 500 2207 (d) 348 502 207
  33. 33.🔢 You want to remember the number 463033555867. Which chunked version keeps every digit in the same order? (a) 4630 3355 867 (b) 4630 3355 5867 (c) 4603 3355 5867 (d) 4630 3335 55867
  34. 34.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
  35. 35.🔢 You want to remember the number 9413754050. Which chunked version keeps every digit in the same order? (a) 914 375 4050 (b) 941 375 4050 (c) 913 754 050 (d) 941 375 40500
  36. 36.📅 The digits 17082000 are a date: day, month, year. Which chunking shows the date? (a) 170/820/00 (b) 17/08/2000 (c) 17/0820/00 (d) 1708/20/00
  37. 37.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
  38. 38.🔢 You want to remember the number 661454858315. Which chunked version keeps every digit in the same order? (a) 6614 5448 58315 (b) 6615 4485 8315 (c) 6614 5485 835 (d) 6614 5485 8315
  39. 39.🔢 You want to remember the number 498379310929. Which chunked version keeps every digit in the same order? (a) 4983 7931 0929 (b) 4983 7931 10929 (c) 4983 7931 029 (d) 4983 7931 0992
  40. 40.🔢 You want to remember the number 7663152030. Which chunked version keeps every digit in the same order? (a) 763 615 2030 (b) 766 315 20030 (c) 763 152 030 (d) 766 315 2030

Answer key

  1. 9030 3581 5290
  2. 28/04/1952
  3. three chunks, not ten
  4. 238 050 188
  5. 901 730 4624
  6. 5
  7. 20/08/1951
  8. 758 497 9869
  9. 229 568 555
  10. 3
  11. numbers and letter lists
  12. 8265 9020 9721
  13. splitting into groups
  14. 224 538 522
  15. 9
  16. 2
  17. 581 946 199
  18. 22/12/1964
  19. 3
  20. 2
  21. 13/03/1969
  22. 17/07/1990
  23. 5
  24. 19 and 47
  25. 9501 5070 7928
  26. 4
  27. 9047 4843 0841
  28. means something to you
  29. 7
  30. 18/07/2014
  31. 12/08/1970
  32. 348 502 207
  33. 4630 3355 5867
  34. 8
  35. 941 375 4050
  36. 17/08/2000
  37. 5
  38. 6614 5485 8315
  39. 4983 7931 0929
  40. 766 315 2030

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