Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 109 · 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.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
2. 2.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
3. 3.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
4. 4.📅 The digits 17081985 are a date: day, month, year. Which chunking shows the date? (a) 170/819/85 (b) 1708/19/85 (c) 17/08/1985 (d) 17/0819/85
5. 5.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.📅 The digits 26102025 are a date: day, month, year. Which chunking shows the date? (a) 26/10/2025 (b) 261/020/25 (c) 2610/20/25 (d) 26/1020/25
7. 7.📅 The digits 09011993 are a date: day, month, year. Which chunking shows the date? (a) 09/01/1993 (b) 090/119/93 (c) 09/0119/93 (d) 0901/19/93
8. 8.🔢 You want to remember the number 999344910. Which chunked version keeps every digit in the same order? (a) 999 344 910 (b) 993 449 10 (c) 999 349 410 (d) 999 344 9110
9. 9.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
10. 10.📅 The digits 02071966 are a date: day, month, year. Which chunking shows the date? (a) 02/0719/66 (b) 02/07/1966 (c) 0207/19/66 (d) 020/719/66
11. 11.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
12. 12.🔢 You want to remember the number 4743440205. Which chunked version keeps every digit in the same order? (a) 474 344 0205 (b) 474 340 205 (c) 474 434 0205 (d) 474 344 00205
13. 13.📅 The digits 17061955 are a date: day, month, year. Which chunking shows the date? (a) 17/0619/55 (b) 17/06/1955 (c) 1706/19/55 (d) 170/619/55
14. 14.📅 The digits 06032011 are a date: day, month, year. Which chunking shows the date? (a) 0603/20/11 (b) 060/320/11 (c) 06/0320/11 (d) 06/03/2011
15. 15.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
16. 16.📅 The digits 22011953 are a date: day, month, year. Which chunking shows the date? (a) 220/119/53 (b) 22/0119/53 (c) 22/01/1953 (d) 2201/19/53
17. 17.🔢 You want to remember the number 169353861. Which chunked version keeps every digit in the same order? (a) 169 353 8611 (b) 169 358 361 (c) 169 338 61 (d) 169 353 861
18. 18.🔢 You want to remember the number 873142451. Which chunked version keeps every digit in the same order? (a) 873 114 2451 (b) 873 142 451 (c) 873 412 451 (d) 871 424 51
19. 19.📅 The digits 03022018 are a date: day, month, year. Which chunking shows the date? (a) 03/0220/18 (b) 03/02/2018 (c) 030/220/18 (d) 0302/20/18
20. 20.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it is a smaller number (d) it has fewer digits
21. 21.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
22. 22.🔢 You want to remember the number 369356211362. Which chunked version keeps every digit in the same order? (a) 3693 5662 11362 (b) 3693 5621 1362 (c) 3935 6211 362 (d) 3693 5621 1632
23. 23.🔢 You want to remember the number 202982625921. Which chunked version keeps every digit in the same order? (a) 2029 2862 5921 (b) 2029 8262 5921 (c) 2202 9826 25921 (d) 2029 8262 592
24. 24.🔢 You want to remember the number 323188187063. Which chunked version keeps every digit in the same order? (a) 3231 8818 703 (b) 3321 8818 7063 (c) 3231 8818 87063 (d) 3231 8818 7063
25. 25.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
26. 26.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
27. 27.🔢 You want to remember the number 100890219. Which chunked version keeps every digit in the same order? (a) 100 890 219 (b) 100 890 0219 (c) 100 890 129 (d) 100 890 21
28. 28.📅 The digits 14092024 are a date: day, month, year. Which chunking shows the date? (a) 14/0920/24 (b) 140/920/24 (c) 14/09/2024 (d) 1409/20/24
29. 29.📅 The digits 03102003 are a date: day, month, year. Which chunking shows the date? (a) 03/1020/03 (b) 0310/20/03 (c) 03/10/2003 (d) 031/020/03
30. 30.🔢 You want to remember the number 6494692772. Which chunked version keeps every digit in the same order? (a) 649 469 272 (b) 649 469 2727 (c) 649 469 27772 (d) 649 469 2772
31. 31.📅 The digits 27042003 are a date: day, month, year. Which chunking shows the date? (a) 270/420/03 (b) 27/0420/03 (c) 27/04/2003 (d) 2704/20/03
32. 32.📅 The digits 24082014 are a date: day, month, year. Which chunking shows the date? (a) 240/820/14 (b) 24/0820/14 (c) 2408/20/14 (d) 24/08/2014
33. 33.📅 The digits 04121971 are a date: day, month, year. Which chunking shows the date? (a) 04/1219/71 (b) 0412/19/71 (c) 04/12/1971 (d) 041/219/71
34. 34.🔢 You want to remember the number 4861447778. Which chunked version keeps every digit in the same order? (a) 486 144 7778 (b) 468 144 7778 (c) 486 144 47778 (d) 481 447 778
35. 35.📅 The digits 19031969 are a date: day, month, year. Which chunking shows the date? (a) 19/0319/69 (b) 19/03/1969 (c) 190/319/69 (d) 1903/19/69
36. 36.📅 The digits 20071963 are a date: day, month, year. Which chunking shows the date? (a) 2007/19/63 (b) 20/0719/63 (c) 200/719/63 (d) 20/07/1963
37. 37.📅 The digits 18012014 are a date: day, month, year. Which chunking shows the date? (a) 180/120/14 (b) 18/01/2014 (c) 18/0120/14 (d) 1801/20/14
38. 38.📅 The digits 23021974 are a date: day, month, year. Which chunking shows the date? (a) 23/0219/74 (b) 2302/19/74 (c) 23/02/1974 (d) 230/219/74
39. 39.🔢 You want to remember the number 614998904. Which chunked version keeps every digit in the same order? (a) 614 998 90 (b) 614 998 904 (c) 614 499 8904 (d) 641 998 904
40. 40.🔢 You want to remember the number 638899221. Which chunked version keeps every digit in the same order? (a) 388 992 21 (b) 638 899 2221 (c) 638 899 221 (d) 638 989 221

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