Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 697 · 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 23101957 are a date: day, month, year. Which chunking shows the date? (a) 23/1019/57 (b) 231/019/57 (c) 23/10/1957 (d) 2310/19/57
2. 2.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
3. 3.🔢 You want to remember the number 473618280831. Which chunked version keeps every digit in the same order? (a) 4763 1828 0831 (b) 4731 8280 831 (c) 4736 1822 80831 (d) 4736 1828 0831
4. 4.📅 The digits 15041968 are a date: day, month, year. Which chunking shows the date? (a) 15/04/1968 (b) 150/419/68 (c) 15/0419/68 (d) 1504/19/68
5. 5.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
7. 7.🔢 You want to remember the number 375742092. Which chunked version keeps every digit in the same order? (a) 375 740 92 (b) 375 742 092 (c) 375 724 092 (d) 375 742 2092
8. 8.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
9. 9.🔢 Chunking works for… (a) only pictures (b) only numbers (c) numbers and letter lists (d) nothing at all
10. 10.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) splitting into groups (d) writing it twice
11. 11.📅 The digits 02121952 are a date: day, month, year. Which chunking shows the date? (a) 02/1219/52 (b) 02/12/1952 (c) 021/219/52 (d) 0212/19/52
12. 12.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
13. 13.📅 The digits 12031957 are a date: day, month, year. Which chunking shows the date? (a) 12/0319/57 (b) 120/319/57 (c) 1203/19/57 (d) 12/03/1957
14. 14.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
15. 15.📅 The digits 22021989 are a date: day, month, year. Which chunking shows the date? (a) 220/219/89 (b) 22/0219/89 (c) 2202/19/89 (d) 22/02/1989
16. 16.📅 The digits 19041993 are a date: day, month, year. Which chunking shows the date? (a) 190/419/93 (b) 19/0419/93 (c) 19/04/1993 (d) 1904/19/93
17. 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is a smaller number (d) it is printed bigger
18. 18.📅 The digits 25061996 are a date: day, month, year. Which chunking shows the date? (a) 2506/19/96 (b) 25/06/1996 (c) 250/619/96 (d) 25/0619/96
19. 19.🔢 You want to remember the number 102790814039. Which chunked version keeps every digit in the same order? (a) 0279 0814 039 (b) 1027 9081 4039 (c) 1027 0981 4039 (d) 1027 9908 14039
20. 20.🔢 You want to remember the number 2126050326. Which chunked version keeps every digit in the same order? (a) 212 605 0326 (b) 212 600 326 (c) 212 650 0326 (d) 221 260 50326
21. 21.📅 The digits 12121973 are a date: day, month, year. Which chunking shows the date? (a) 121/219/73 (b) 1212/19/73 (c) 12/1219/73 (d) 12/12/1973
22. 22.📅 The digits 04012006 are a date: day, month, year. Which chunking shows the date? (a) 04/0120/06 (b) 04/01/2006 (c) 0401/20/06 (d) 040/120/06
23. 23.📅 The digits 19111971 are a date: day, month, year. Which chunking shows the date? (a) 1911/19/71 (b) 19/11/1971 (c) 19/1119/71 (d) 191/119/71
24. 24.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
25. 25.📅 The digits 19091990 are a date: day, month, year. Which chunking shows the date? (a) 19/0919/90 (b) 1909/19/90 (c) 19/09/1990 (d) 190/919/90
26. 26.📅 The digits 07082007 are a date: day, month, year. Which chunking shows the date? (a) 07/08/2007 (b) 07/0820/07 (c) 0708/20/07 (d) 070/820/07
27. 27.📅 The digits 25032019 are a date: day, month, year. Which chunking shows the date? (a) 25/03/2019 (b) 250/320/19 (c) 2503/20/19 (d) 25/0320/19
28. 28.📅 The digits 15091977 are a date: day, month, year. Which chunking shows the date? (a) 1509/19/77 (b) 15/0919/77 (c) 150/919/77 (d) 15/09/1977
29. 29.🔢 You want to remember the number 109299440. Which chunked version keeps every digit in the same order? (a) 109 299 440 (b) 190 299 440 (c) 100 929 9440 (d) 109 994 40
30. 30.📅 The digits 15081958 are a date: day, month, year. Which chunking shows the date? (a) 15/0819/58 (b) 1508/19/58 (c) 150/819/58 (d) 15/08/1958
31. 31.📅 The digits 08022007 are a date: day, month, year. Which chunking shows the date? (a) 08/0220/07 (b) 080/220/07 (c) 0802/20/07 (d) 08/02/2007
32. 32.🔢 You want to remember the number 3969931710. Which chunked version keeps every digit in the same order? (a) 399 931 710 (b) 396 999 31710 (c) 396 993 1170 (d) 396 993 1710
33. 33.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
34. 34.📅 The digits 02112008 are a date: day, month, year. Which chunking shows the date? (a) 0211/20/08 (b) 02/11/2008 (c) 021/120/08 (d) 02/1120/08
35. 35.📅 The digits 01061990 are a date: day, month, year. Which chunking shows the date? (a) 01/06/1990 (b) 01/0619/90 (c) 010/619/90 (d) 0106/19/90
36. 36.📅 The digits 28072011 are a date: day, month, year. Which chunking shows the date? (a) 28/07/2011 (b) 2807/20/11 (c) 280/720/11 (d) 28/0720/11
37. 37.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
38. 38.🔢 You want to remember the number 407232665. Which chunked version keeps every digit in the same order? (a) 407 232 66 (b) 407 232 665 (c) 402 732 665 (d) 407 232 2665
39. 39.📅 The digits 12071958 are a date: day, month, year. Which chunking shows the date? (a) 12/07/1958 (b) 120/719/58 (c) 1207/19/58 (d) 12/0719/58
40. 40.🔢 You want to remember the number 4056742592. Which chunked version keeps every digit in the same order? (a) 440 567 42592 (b) 405 674 2592 (c) 405 742 592 (d) 405 647 2592

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