Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 504 · 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 915566632738. Which chunked version keeps every digit in the same order? (a) 9155 6636 2738 (b) 9556 6632 738 (c) 9155 5666 32738 (d) 9155 6663 2738
2. 2.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
3. 3.📅 The digits 15062020 are a date: day, month, year. Which chunking shows the date? (a) 15/0620/20 (b) 15/06/2020 (c) 1506/20/20 (d) 150/620/20
4. 4.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 You want to remember the number 172191660. Which chunked version keeps every digit in the same order? (a) 172 911 660 (b) 172 196 60 (c) 172 191 6660 (d) 172 191 660
6. 6.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 1 9 4 7 (d) 194 and 7
7. 7.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
8. 8.📅 The digits 17011986 are a date: day, month, year. Which chunking shows the date? (a) 170/119/86 (b) 17/01/1986 (c) 17/0119/86 (d) 1701/19/86
9. 9.📅 The digits 11031961 are a date: day, month, year. Which chunking shows the date? (a) 11/0319/61 (b) 110/319/61 (c) 1103/19/61 (d) 11/03/1961
10. 10.📅 The digits 08071986 are a date: day, month, year. Which chunking shows the date? (a) 0807/19/86 (b) 08/0719/86 (c) 08/07/1986 (d) 080/719/86
11. 11.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
12. 12.📅 The digits 03031980 are a date: day, month, year. Which chunking shows the date? (a) 03/0319/80 (b) 03/03/1980 (c) 0303/19/80 (d) 030/319/80
13. 13.🔢 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
14. 14.🔢 You want to remember the number 223103680. Which chunked version keeps every digit in the same order? (a) 222 310 3680 (b) 223 013 680 (c) 223 106 80 (d) 223 103 680
15. 15.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
16. 16.🔢 You want to remember the number 572874028267. Which chunked version keeps every digit in the same order? (a) 5728 7402 8267 (b) 5772 8740 28267 (c) 5728 4028 267 (d) 5782 7402 8267
17. 17.🔢 You want to remember the number 840803938. Which chunked version keeps every digit in the same order? (a) 480 803 938 (b) 840 803 9388 (c) 840 803 938 (d) 840 803 93
18. 18.📅 The digits 22081952 are a date: day, month, year. Which chunking shows the date? (a) 22/08/1952 (b) 2208/19/52 (c) 220/819/52 (d) 22/0819/52
19. 19.📅 The digits 28081993 are a date: day, month, year. Which chunking shows the date? (a) 28/0819/93 (b) 280/819/93 (c) 2808/19/93 (d) 28/08/1993
20. 20.🔢 You want to remember the number 894711171672. Which chunked version keeps every digit in the same order? (a) 8947 1171 672 (b) 8947 1117 1672 (c) 8497 1117 1672 (d) 8947 1117 11672
21. 21.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) has no pattern (d) means something to you
22. 22.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
23. 23.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
24. 24.🔢 You want to remember the number 250333898. Which chunked version keeps every digit in the same order? (a) 250 333 89 (b) 250 333 3898 (c) 520 333 898 (d) 250 333 898
25. 25.📅 The digits 08041995 are a date: day, month, year. Which chunking shows the date? (a) 08/0419/95 (b) 080/419/95 (c) 08/04/1995 (d) 0804/19/95
26. 26.📅 The digits 01071969 are a date: day, month, year. Which chunking shows the date? (a) 01/07/1969 (b) 01/0719/69 (c) 010/719/69 (d) 0107/19/69
27. 27.📅 The digits 09022022 are a date: day, month, year. Which chunking shows the date? (a) 09/02/2022 (b) 09/0220/22 (c) 090/220/22 (d) 0902/20/22
28. 28.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
29. 29.📅 The digits 01041959 are a date: day, month, year. Which chunking shows the date? (a) 01/04/1959 (b) 01/0419/59 (c) 0104/19/59 (d) 010/419/59
30. 30.🔢 You want to remember the number 6217930025. Which chunked version keeps every digit in the same order? (a) 621 793 0025 (b) 621 790 3025 (c) 621 793 00025 (d) 217 930 025
31. 31.📅 The digits 04102023 are a date: day, month, year. Which chunking shows the date? (a) 041/020/23 (b) 04/10/2023 (c) 0410/20/23 (d) 04/1020/23
32. 32.📅 The digits 03091989 are a date: day, month, year. Which chunking shows the date? (a) 0309/19/89 (b) 03/09/1989 (c) 03/0919/89 (d) 030/919/89
33. 33.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
34. 34.📅 The digits 19092003 are a date: day, month, year. Which chunking shows the date? (a) 19/0920/03 (b) 190/920/03 (c) 1909/20/03 (d) 19/09/2003
35. 35.🔢 You want to remember the number 3554013975. Which chunked version keeps every digit in the same order? (a) 355 401 3795 (b) 355 401 975 (c) 355 401 3975 (d) 355 540 13975
36. 36.🔢 You want to remember the number 553309863. Which chunked version keeps every digit in the same order? (a) 553 309 863 (b) 555 330 9863 (c) 553 098 63 (d) 553 390 863
37. 37.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
38. 38.📅 The digits 03012007 are a date: day, month, year. Which chunking shows the date? (a) 0301/20/07 (b) 030/120/07 (c) 03/01/2007 (d) 03/0120/07
39. 39.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
40. 40.🔢 You want to remember the number 489656262026. Which chunked version keeps every digit in the same order? (a) 4896 5662 62026 (b) 4896 6526 2026 (c) 4896 5626 2026 (d) 4896 5626 026

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