Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 177 · 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 640792116128. Which chunked version keeps every digit in the same order? (a) 6407 9211 6128 (b) 6407 9211 612 (c) 6640 7921 16128 (d) 6407 2911 6128
2. 2.🔢 You want to remember the number 170108505. Which chunked version keeps every digit in the same order? (a) 170 108 055 (b) 170 108 8505 (c) 170 105 05 (d) 170 108 505
3. 3.📅 The digits 17121987 are a date: day, month, year. Which chunking shows the date? (a) 17/12/1987 (b) 171/219/87 (c) 1712/19/87 (d) 17/1219/87
4. 4.📅 The digits 11032025 are a date: day, month, year. Which chunking shows the date? (a) 11/03/2025 (b) 110/320/25 (c) 1103/20/25 (d) 11/0320/25
5. 5.📅 The digits 08052013 are a date: day, month, year. Which chunking shows the date? (a) 08/0520/13 (b) 08/05/2013 (c) 0805/20/13 (d) 080/520/13
6. 6.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
7. 7.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
8. 8.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) has no pattern (d) means something to you
9. 9.📅 The digits 16011951 are a date: day, month, year. Which chunking shows the date? (a) 16/0119/51 (b) 1601/19/51 (c) 160/119/51 (d) 16/01/1951
10. 10.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 9 4 7 (d) 1 and 947
11. 11.🔢 You want to remember the number 939154174. Which chunked version keeps every digit in the same order? (a) 939 514 174 (b) 939 154 174 (c) 391 541 74 (d) 993 915 4174
12. 12.🔢 You want to remember the number 390198209068. Which chunked version keeps every digit in the same order? (a) 3901 9809 068 (b) 9301 9820 9068 (c) 3901 9820 90688 (d) 3901 9820 9068
13. 13.🔢 You want to remember the number 951374999. Which chunked version keeps every digit in the same order? (a) 951 379 499 (b) 951 374 4999 (c) 951 374 999 (d) 951 749 99
14. 14.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
15. 15.📅 The digits 08072016 are a date: day, month, year. Which chunking shows the date? (a) 08/07/2016 (b) 0807/20/16 (c) 08/0720/16 (d) 080/720/16
16. 16.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
17. 17.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
18. 18.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) reading very fast (d) writing it twice
19. 19.📅 The digits 17041965 are a date: day, month, year. Which chunking shows the date? (a) 17/04/1965 (b) 1704/19/65 (c) 17/0419/65 (d) 170/419/65
20. 20.📅 The digits 02041979 are a date: day, month, year. Which chunking shows the date? (a) 0204/19/79 (b) 02/04/1979 (c) 02/0419/79 (d) 020/419/79
21. 21.📅 The digits 09081991 are a date: day, month, year. Which chunking shows the date? (a) 0908/19/91 (b) 090/819/91 (c) 09/08/1991 (d) 09/0819/91
22. 22.📅 The digits 10122009 are a date: day, month, year. Which chunking shows the date? (a) 10/1220/09 (b) 101/220/09 (c) 1012/20/09 (d) 10/12/2009
23. 23.🔢 You want to remember the number 4978754410. Which chunked version keeps every digit in the same order? (a) 497 875 4140 (b) 497 875 440 (c) 497 875 4410 (d) 497 875 44100
24. 24.🔢 You want to remember the number 622884951. Which chunked version keeps every digit in the same order? (a) 622 288 4951 (b) 628 284 951 (c) 628 849 51 (d) 622 884 951
25. 25.🔢 You want to remember the number 8496979886. Which chunked version keeps every digit in the same order? (a) 849 697 98866 (b) 894 697 9886 (c) 849 979 886 (d) 849 697 9886
26. 26.📅 The digits 11122021 are a date: day, month, year. Which chunking shows the date? (a) 111/220/21 (b) 11/12/2021 (c) 1112/20/21 (d) 11/1220/21
27. 27.🔢 You want to remember the number 371481905. Which chunked version keeps every digit in the same order? (a) 371 418 905 (b) 371 481 1905 (c) 371 481 905 (d) 371 419 05
28. 28.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
29. 29.📅 The digits 06111974 are a date: day, month, year. Which chunking shows the date? (a) 0611/19/74 (b) 061/119/74 (c) 06/1119/74 (d) 06/11/1974
30. 30.🔢 You want to remember the number 7196226324. Which chunked version keeps every digit in the same order? (a) 719 622 26324 (b) 719 226 324 (c) 719 622 6324 (d) 179 622 6324
31. 31.📅 The digits 21111966 are a date: day, month, year. Which chunking shows the date? (a) 21/11/1966 (b) 2111/19/66 (c) 21/1119/66 (d) 211/119/66
32. 32.🔢 You want to remember the number 2157422545. Which chunked version keeps every digit in the same order? (a) 215 774 22545 (b) 215 742 545 (c) 215 742 2455 (d) 215 742 2545
33. 33.🔢 You want to remember the number 629366468528. Which chunked version keeps every digit in the same order? (a) 6293 6664 8528 (b) 6293 6664 68528 (c) 6293 6646 858 (d) 6293 6646 8528
34. 34.📅 The digits 25052020 are a date: day, month, year. Which chunking shows the date? (a) 250/520/20 (b) 25/0520/20 (c) 2505/20/20 (d) 25/05/2020
35. 35.📅 The digits 17062019 are a date: day, month, year. Which chunking shows the date? (a) 170/620/19 (b) 1706/20/19 (c) 17/0620/19 (d) 17/06/2019
36. 36.📅 The digits 15021952 are a date: day, month, year. Which chunking shows the date? (a) 15/02/1952 (b) 15/0219/52 (c) 1502/19/52 (d) 150/219/52
37. 37.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
38. 38.🔢 You want to remember the number 7204328822. Which chunked version keeps every digit in the same order? (a) 720 432 822 (b) 720 432 8822 (c) 720 043 28822 (d) 720 438 2822
39. 39.🔢 Chunking works for… (a) nothing at all (b) only pictures (c) only numbers (d) numbers and letter lists
40. 40.🔢 You want to remember the number 6028280310. Which chunked version keeps every digit in the same order? (a) 602 882 80310 (b) 620 828 0310 (c) 628 280 310 (d) 602 828 0310

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