Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 391 · 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.📅 The digits 07021972 are a date: day, month, year. Which chunking shows the date? (a) 07/02/1972 (b) 07/0219/72 (c) 070/219/72 (d) 0702/19/72
2. 2.🔢 Chunking works for… (a) only numbers (b) only pictures (c) numbers and letter lists (d) nothing at all
3. 3.📅 The digits 14032025 are a date: day, month, year. Which chunking shows the date? (a) 14/03/2025 (b) 140/320/25 (c) 1403/20/25 (d) 14/0320/25
4. 4.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) has no pattern (d) means something to you
5. 5.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
6. 6.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) reading very fast (d) writing it twice
7. 7.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
8. 8.📅 The digits 26052016 are a date: day, month, year. Which chunking shows the date? (a) 260/520/16 (b) 26/0520/16 (c) 2605/20/16 (d) 26/05/2016
9. 9.📅 The digits 02051958 are a date: day, month, year. Which chunking shows the date? (a) 020/519/58 (b) 02/0519/58 (c) 02/05/1958 (d) 0205/19/58
10. 10.📅 The digits 19042022 are a date: day, month, year. Which chunking shows the date? (a) 19/0420/22 (b) 19/04/2022 (c) 1904/20/22 (d) 190/420/22
11. 11.🔢 You want to remember the number 5446861633. Which chunked version keeps every digit in the same order? (a) 446 861 633 (b) 554 468 61633 (c) 544 686 6133 (d) 544 686 1633
12. 12.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
13. 13.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) it is printed bigger (d) three chunks, not ten
14. 14.📅 The digits 09062000 are a date: day, month, year. Which chunking shows the date? (a) 090/620/00 (b) 0906/20/00 (c) 09/0620/00 (d) 09/06/2000
15. 15.📅 The digits 08071958 are a date: day, month, year. Which chunking shows the date? (a) 08/0719/58 (b) 0807/19/58 (c) 080/719/58 (d) 08/07/1958
16. 16.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
17. 17.🔢 You want to remember the number 7543587709. Which chunked version keeps every digit in the same order? (a) 754 358 7709 (b) 754 358 7079 (c) 755 435 87709 (d) 543 587 709
18. 18.🔢 You want to remember the number 9199459962. Which chunked version keeps every digit in the same order? (a) 919 945 992 (b) 991 945 9962 (c) 919 945 9962 (d) 991 994 59962
19. 19.📅 The digits 16012005 are a date: day, month, year. Which chunking shows the date? (a) 16/01/2005 (b) 1601/20/05 (c) 160/120/05 (d) 16/0120/05
20. 20.📅 The digits 04061957 are a date: day, month, year. Which chunking shows the date? (a) 0406/19/57 (b) 04/0619/57 (c) 040/619/57 (d) 04/06/1957
21. 21.📅 The digits 01051955 are a date: day, month, year. Which chunking shows the date? (a) 010/519/55 (b) 01/0519/55 (c) 01/05/1955 (d) 0105/19/55
22. 22.🔢 You want to remember the number 307402250957. Which chunked version keeps every digit in the same order? (a) 3074 0225 0957 (b) 3074 0222 50957 (c) 3074 2025 0957 (d) 3074 0225 057
23. 23.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
24. 24.🔢 You want to remember the number 900955538. Which chunked version keeps every digit in the same order? (a) 909 055 538 (b) 900 955 538 (c) 900 095 5538 (d) 900 955 38
25. 25.📅 The digits 08031959 are a date: day, month, year. Which chunking shows the date? (a) 0803/19/59 (b) 080/319/59 (c) 08/0319/59 (d) 08/03/1959
26. 26.📅 The digits 03042000 are a date: day, month, year. Which chunking shows the date? (a) 0304/20/00 (b) 03/0420/00 (c) 03/04/2000 (d) 030/420/00
27. 27.🔢 You want to remember the number 5011939499. Which chunked version keeps every digit in the same order? (a) 501 193 94999 (b) 501 139 499 (c) 501 193 9499 (d) 510 193 9499
28. 28.📅 The digits 26091954 are a date: day, month, year. Which chunking shows the date? (a) 26/0919/54 (b) 2609/19/54 (c) 26/09/1954 (d) 260/919/54
29. 29.📅 The digits 15011993 are a date: day, month, year. Which chunking shows the date? (a) 15/0119/93 (b) 15/01/1993 (c) 1501/19/93 (d) 150/119/93
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 958452143. Which chunked version keeps every digit in the same order? (a) 958 455 2143 (b) 958 452 143 (c) 584 521 43 (d) 598 452 143
32. 32.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
33. 33.📅 The digits 25071970 are a date: day, month, year. Which chunking shows the date? (a) 250/719/70 (b) 25/0719/70 (c) 25/07/1970 (d) 2507/19/70
34. 34.📅 The digits 11082010 are a date: day, month, year. Which chunking shows the date? (a) 1108/20/10 (b) 110/820/10 (c) 11/08/2010 (d) 11/0820/10
35. 35.📅 The digits 11092023 are a date: day, month, year. Which chunking shows the date? (a) 1109/20/23 (b) 110/920/23 (c) 11/0920/23 (d) 11/09/2023
36. 36.🔢 You want to remember the number 2854950539. Which chunked version keeps every digit in the same order? (a) 285 495 05399 (b) 285 495 0539 (c) 254 950 539 (d) 284 595 0539
37. 37.🔢 You want to remember the number 225521050. Which chunked version keeps every digit in the same order? (a) 225 521 50 (b) 225 552 1050 (c) 225 521 050 (d) 225 251 050
38. 38.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
39. 39.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
40. 40.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?

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