Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 506 · 40 questions

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.

1. 1.🔢 You want to remember the number 107505021678. Which chunked version keeps every digit in the same order? (a) 0750 5021 678 (b) 1077 5050 21678 (c) 1075 0502 1678 (d) 1075 0520 1678
2. 2.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
3. 3.📅 The digits 20032001 are a date: day, month, year. Which chunking shows the date? (a) 200/320/01 (b) 20/03/2001 (c) 20/0320/01 (d) 2003/20/01
4. 4.🔢 You want to remember the number 843789245. Which chunked version keeps every digit in the same order? (a) 843 778 9245 (b) 843 792 45 (c) 843 789 245 (d) 843 789 425
5. 5.🔢 You want to remember the number 901848073053. Which chunked version keeps every digit in the same order? (a) 9018 4807 30533 (b) 9018 4807 3053 (c) 9018 4873 053 (d) 9018 4807 3035
6. 6.📅 The digits 13041975 are a date: day, month, year. Which chunking shows the date? (a) 13/04/1975 (b) 1304/19/75 (c) 130/419/75 (d) 13/0419/75
7. 7.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) it is printed bigger (d) three chunks, not ten
8. 8.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures
9. 9.🔢 You want to remember the number 653258801. Which chunked version keeps every digit in the same order? (a) 653 258 801 (b) 652 358 801 (c) 653 258 8011 (d) 653 258 80
10. 10.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
11. 11.🔢 You want to remember the number 288646925. Which chunked version keeps every digit in the same order? (a) 288 669 25 (b) 288 646 925 (c) 288 864 6925 (d) 288 646 952
12. 12.🔢 You want to remember the number 6492111387. Which chunked version keeps every digit in the same order? (a) 649 211 11387 (b) 642 111 387 (c) 469 211 1387 (d) 649 211 1387
13. 13.🔢 You want to remember the number 930574145. Which chunked version keeps every digit in the same order? (a) 930 574 145 (b) 993 057 4145 (c) 930 741 45 (d) 935 074 145
14. 14.📅 The digits 02051964 are a date: day, month, year. Which chunking shows the date? (a) 02/05/1964 (b) 020/519/64 (c) 0205/19/64 (d) 02/0519/64
15. 15.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
16. 16.📅 The digits 25072023 are a date: day, month, year. Which chunking shows the date? (a) 2507/20/23 (b) 25/07/2023 (c) 25/0720/23 (d) 250/720/23
17. 17.📅 The digits 24091986 are a date: day, month, year. Which chunking shows the date? (a) 240/919/86 (b) 2409/19/86 (c) 24/09/1986 (d) 24/0919/86
18. 18.📅 The digits 23051982 are a date: day, month, year. Which chunking shows the date? (a) 2305/19/82 (b) 230/519/82 (c) 23/0519/82 (d) 23/05/1982
19. 19.🔢 You want to remember the number 525061693152. Which chunked version keeps every digit in the same order? (a) 5250 6169 352 (b) 5250 6169 3152 (c) 5256 0169 3152 (d) 5250 6616 93152
20. 20.📅 The digits 19112024 are a date: day, month, year. Which chunking shows the date? (a) 191/120/24 (b) 1911/20/24 (c) 19/1120/24 (d) 19/11/2024
21. 21.📅 The digits 09032010 are a date: day, month, year. Which chunking shows the date? (a) 09/0320/10 (b) 09/03/2010 (c) 090/320/10 (d) 0903/20/10
22. 22.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) saying it backwards (d) writing it twice
23. 23.🔢 You want to remember the number 623180562871. Which chunked version keeps every digit in the same order? (a) 6231 8056 2817 (b) 6231 8056 2871 (c) 6231 8056 287 (d) 6623 1805 62871
24. 24.🔢 You want to remember the number 445049255538. Which chunked version keeps every digit in the same order? (a) 4450 4952 5538 (b) 4450 4925 5538 (c) 4404 9255 538 (d) 4450 4925 55388
25. 25.📅 The digits 07091996 are a date: day, month, year. Which chunking shows the date? (a) 0709/19/96 (b) 07/0919/96 (c) 07/09/1996 (d) 070/919/96
26. 26.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 1 and 947 (d) 19 and 47
27. 27.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
28. 28.🔢 You want to remember the number 892528614585. Which chunked version keeps every digit in the same order? (a) 8925 5286 14585 (b) 8922 8614 585 (c) 8925 2861 4558 (d) 8925 2861 4585
29. 29.📅 The digits 09111987 are a date: day, month, year. Which chunking shows the date? (a) 091/119/87 (b) 0911/19/87 (c) 09/1119/87 (d) 09/11/1987
30. 30.🔢 You want to remember the number 350242068. Which chunked version keeps every digit in the same order? (a) 350 420 68 (b) 350 242 068 (c) 350 242 086 (d) 350 024 2068
31. 31.🔢 You want to remember the number 552625215. Which chunked version keeps every digit in the same order? (a) 552 625 215 (b) 555 262 5215 (c) 526 252 15 (d) 525 625 215
32. 32.📅 The digits 19052021 are a date: day, month, year. Which chunking shows the date? (a) 19/05/2021 (b) 19/0520/21 (c) 1905/20/21 (d) 190/520/21
33. 33.🔢 You want to remember the number 372373976782. Which chunked version keeps every digit in the same order? (a) 3723 7397 67822 (b) 3723 7937 6782 (c) 3723 7397 682 (d) 3723 7397 6782
34. 34.🔢 You want to remember the number 406093017. Which chunked version keeps every digit in the same order? (a) 406 093 17 (b) 406 093 017 (c) 406 009 3017 (d) 406 039 017
35. 35.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
36. 36.📅 The digits 17032002 are a date: day, month, year. Which chunking shows the date? (a) 1703/20/02 (b) 17/0320/02 (c) 170/320/02 (d) 17/03/2002
37. 37.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
38. 38.📅 The digits 18121985 are a date: day, month, year. Which chunking shows the date? (a) 18/12/1985 (b) 181/219/85 (c) 1812/19/85 (d) 18/1219/85
39. 39.🔢 You want to remember the number 3846462105. Which chunked version keeps every digit in the same order? (a) 834 646 2105 (b) 384 662 105 (c) 338 464 62105 (d) 384 646 2105
40. 40.📅 The digits 05101958 are a date: day, month, year. Which chunking shows the date? (a) 05/1019/58 (b) 05/10/1958 (c) 051/019/58 (d) 0510/19/58

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