Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 107 · 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.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
2. 2.🔢 You want to remember the number 501575864887. Which chunked version keeps every digit in the same order? (a) 5051 7586 4887 (b) 5015 7586 48887 (c) 5015 7586 4887 (d) 5015 7586 487
3. 3.🔢 You want to remember the number 104398324197. Which chunked version keeps every digit in the same order? (a) 1043 9832 4179 (b) 1043 9832 419 (c) 1043 9832 4197 (d) 1043 9832 41997
4. 4.📅 The digits 04021962 are a date: day, month, year. Which chunking shows the date? (a) 040/219/62 (b) 0402/19/62 (c) 04/0219/62 (d) 04/02/1962
5. 5.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.📅 The digits 02081988 are a date: day, month, year. Which chunking shows the date? (a) 02/0819/88 (b) 0208/19/88 (c) 02/08/1988 (d) 020/819/88
7. 7.📅 The digits 13041956 are a date: day, month, year. Which chunking shows the date? (a) 130/419/56 (b) 13/04/1956 (c) 13/0419/56 (d) 1304/19/56
8. 8.🔢 You want to remember the number 172182802. Which chunked version keeps every digit in the same order? (a) 127 182 802 (b) 172 182 2802 (c) 121 828 02 (d) 172 182 802
9. 9.🔢 You want to remember the number 130638783. Which chunked version keeps every digit in the same order? (a) 136 038 783 (b) 130 638 78 (c) 130 638 783 (d) 130 063 8783
10. 10.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
11. 11.📅 The digits 07052025 are a date: day, month, year. Which chunking shows the date? (a) 07/0520/25 (b) 0705/20/25 (c) 070/520/25 (d) 07/05/2025
12. 12.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) writing it twice (d) splitting into groups
13. 13.🔢 You want to remember the number 955675288. Which chunked version keeps every digit in the same order? (a) 956 752 88 (b) 955 675 2888 (c) 955 672 588 (d) 955 675 288
14. 14.📅 The digits 21041983 are a date: day, month, year. Which chunking shows the date? (a) 210/419/83 (b) 21/0419/83 (c) 2104/19/83 (d) 21/04/1983
15. 15.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) three chunks, not ten (c) it is printed bigger (d) it has fewer digits
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.📅 The digits 25012020 are a date: day, month, year. Which chunking shows the date? (a) 250/120/20 (b) 25/01/2020 (c) 25/0120/20 (d) 2501/20/20
18. 18.🔢 You want to remember the number 555678740. Which chunked version keeps every digit in the same order? (a) 555 567 8740 (b) 555 678 740 (c) 555 687 740 (d) 556 787 40
19. 19.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
20. 20.📅 The digits 07022002 are a date: day, month, year. Which chunking shows the date? (a) 0702/20/02 (b) 07/0220/02 (c) 07/02/2002 (d) 070/220/02
21. 21.📅 The digits 16061971 are a date: day, month, year. Which chunking shows the date? (a) 16/06/1971 (b) 160/619/71 (c) 1606/19/71 (d) 16/0619/71
22. 22.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) changes daily (d) is very long
23. 23.🔢 You want to remember the number 951910937208. Which chunked version keeps every digit in the same order? (a) 9519 1093 7208 (b) 9519 1093 728 (c) 9591 1093 7208 (d) 9519 1093 72088
24. 24.📅 The digits 14091987 are a date: day, month, year. Which chunking shows the date? (a) 140/919/87 (b) 14/0919/87 (c) 1409/19/87 (d) 14/09/1987
25. 25.📅 The digits 25081975 are a date: day, month, year. Which chunking shows the date? (a) 250/819/75 (b) 25/0819/75 (c) 25/08/1975 (d) 2508/19/75
26. 26.📅 The digits 20101964 are a date: day, month, year. Which chunking shows the date? (a) 2010/19/64 (b) 201/019/64 (c) 20/1019/64 (d) 20/10/1964
27. 27.📅 The digits 09122018 are a date: day, month, year. Which chunking shows the date? (a) 091/220/18 (b) 09/12/2018 (c) 0912/20/18 (d) 09/1220/18
28. 28.🔢 You want to remember the number 152774840. Which chunked version keeps every digit in the same order? (a) 152 774 840 (b) 152 774 8440 (c) 152 778 40 (d) 512 774 840
29. 29.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
30. 30.🔢 You want to remember the number 279896513. Which chunked version keeps every digit in the same order? (a) 279 889 6513 (b) 279 896 531 (c) 279 895 13 (d) 279 896 513
31. 31.🔢 You want to remember the number 103623356. Which chunked version keeps every digit in the same order? (a) 013 623 356 (b) 103 623 56 (c) 103 623 356 (d) 110 362 3356
32. 32.🔢 You want to remember the number 8410735001. Which chunked version keeps every digit in the same order? (a) 841 073 5001 (b) 841 703 5001 (c) 841 073 50001 (d) 841 073 001
33. 33.🔢 You want to remember the number 7591381075. Which chunked version keeps every digit in the same order? (a) 759 381 075 (b) 755 913 81075 (c) 759 138 1075 (d) 759 138 1057
34. 34.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
35. 35.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 19 and 47 (d) 1 and 947
36. 36.🔢 You want to remember the number 554580713. Which chunked version keeps every digit in the same order? (a) 554 580 731 (b) 554 507 13 (c) 554 580 713 (d) 554 580 7713
37. 37.🔢 You want to remember the number 878562958569. Which chunked version keeps every digit in the same order? (a) 8778 5629 58569 (b) 8785 6295 8659 (c) 7856 2958 569 (d) 8785 6295 8569
38. 38.📅 The digits 12111984 are a date: day, month, year. Which chunking shows the date? (a) 121/119/84 (b) 1211/19/84 (c) 12/1119/84 (d) 12/11/1984
39. 39.🔢 You want to remember the number 560762787836. Which chunked version keeps every digit in the same order? (a) 5607 6278 78336 (b) 5606 7278 7836 (c) 5607 6787 836 (d) 5607 6278 7836
40. 40.📅 The digits 08081983 are a date: day, month, year. Which chunking shows the date? (a) 0808/19/83 (b) 08/0819/83 (c) 080/819/83 (d) 08/08/1983

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