Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 410 · 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.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it has fewer digits (d) it is a smaller number
2. 2.📅 The digits 09072006 are a date: day, month, year. Which chunking shows the date? (a) 09/0720/06 (b) 0907/20/06 (c) 090/720/06 (d) 09/07/2006
3. 3.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
4. 4.🔢 You want to remember the number 479369168974. Which chunked version keeps every digit in the same order? (a) 4779 3691 68974 (b) 4793 6196 8974 (c) 4793 6916 8974 (d) 4793 9168 974
5. 5.🔢 You want to remember the number 224737416927. Which chunked version keeps every digit in the same order? (a) 2247 3741 9627 (b) 2247 3374 16927 (c) 2247 3741 627 (d) 2247 3741 6927
6. 6.🔢 You want to remember the number 732065196. Which chunked version keeps every digit in the same order? (a) 730 651 96 (b) 732 065 196 (c) 732 065 1996 (d) 732 065 916
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) has no pattern (b) means something to you (c) changes daily (d) is very long
9. 9.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) reading very fast (d) splitting into groups
10. 10.📅 The digits 21102015 are a date: day, month, year. Which chunking shows the date? (a) 21/1020/15 (b) 211/020/15 (c) 21/10/2015 (d) 2110/20/15
11. 11.🔢 You want to remember the number 296972337246. Which chunked version keeps every digit in the same order? (a) 2969 7237 246 (b) 2996 9723 37246 (c) 2969 7233 7246 (d) 2969 2733 7246
12. 12.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
13. 13.📅 The digits 03052009 are a date: day, month, year. Which chunking shows the date? (a) 03/0520/09 (b) 03/05/2009 (c) 030/520/09 (d) 0305/20/09
14. 14.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
15. 15.🔢 Chunking works for… (a) only pictures (b) only numbers (c) nothing at all (d) numbers and letter lists
16. 16.🔢 You want to remember the number 792111020796. Which chunked version keeps every digit in the same order? (a) 7921 1102 0796 (b) 7921 1020 796 (c) 7922 1110 20796 (d) 7921 1102 0769
17. 17.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
18. 18.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
19. 19.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
20. 20.📅 The digits 12011999 are a date: day, month, year. Which chunking shows the date? (a) 1201/19/99 (b) 120/119/99 (c) 12/0119/99 (d) 12/01/1999
21. 21.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
22. 22.🔢 You want to remember the number 2688017554. Which chunked version keeps every digit in the same order? (a) 268 017 554 (b) 268 801 7554 (c) 268 807 1554 (d) 268 880 17554
23. 23.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 9 4 7 (c) 1 and 947 (d) 194 and 7
24. 24.🔢 You want to remember the number 571416835. Which chunked version keeps every digit in the same order? (a) 571 416 835 (b) 571 146 835 (c) 577 141 6835 (d) 514 168 35
25. 25.📅 The digits 09121956 are a date: day, month, year. Which chunking shows the date? (a) 091/219/56 (b) 09/12/1956 (c) 0912/19/56 (d) 09/1219/56
26. 26.📅 The digits 18042025 are a date: day, month, year. Which chunking shows the date? (a) 18/04/2025 (b) 180/420/25 (c) 18/0420/25 (d) 1804/20/25
27. 27.📅 The digits 23101957 are a date: day, month, year. Which chunking shows the date? (a) 23/10/1957 (b) 23/1019/57 (c) 231/019/57 (d) 2310/19/57
28. 28.📅 The digits 16011977 are a date: day, month, year. Which chunking shows the date? (a) 1601/19/77 (b) 160/119/77 (c) 16/01/1977 (d) 16/0119/77
29. 29.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
30. 30.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
31. 31.📅 The digits 03072023 are a date: day, month, year. Which chunking shows the date? (a) 030/720/23 (b) 03/0720/23 (c) 03/07/2023 (d) 0307/20/23
32. 32.📅 The digits 16072020 are a date: day, month, year. Which chunking shows the date? (a) 16/07/2020 (b) 160/720/20 (c) 16/0720/20 (d) 1607/20/20
33. 33.📅 The digits 12011950 are a date: day, month, year. Which chunking shows the date? (a) 120/119/50 (b) 1201/19/50 (c) 12/0119/50 (d) 12/01/1950
34. 34.📅 The digits 27022025 are a date: day, month, year. Which chunking shows the date? (a) 27/02/2025 (b) 270/220/25 (c) 2702/20/25 (d) 27/0220/25
35. 35.📅 The digits 27081973 are a date: day, month, year. Which chunking shows the date? (a) 2708/19/73 (b) 27/08/1973 (c) 27/0819/73 (d) 270/819/73
36. 36.📅 The digits 27081995 are a date: day, month, year. Which chunking shows the date? (a) 27/08/1995 (b) 270/819/95 (c) 27/0819/95 (d) 2708/19/95
37. 37.🔢 You want to remember the number 856264845598. Which chunked version keeps every digit in the same order? (a) 8562 6484 55598 (b) 8626 4845 598 (c) 8562 6485 4598 (d) 8562 6484 5598
38. 38.🔢 You want to remember the number 640000208. Which chunked version keeps every digit in the same order? (a) 640 002 008 (b) 640 000 0208 (c) 600 002 08 (d) 640 000 208
39. 39.📅 The digits 05081963 are a date: day, month, year. Which chunking shows the date? (a) 0508/19/63 (b) 050/819/63 (c) 05/0819/63 (d) 05/08/1963
40. 40.🔢 You want to remember the number 802065120053. Which chunked version keeps every digit in the same order? (a) 8802 0651 20053 (b) 8020 6512 0053 (c) 8006 5120 053 (d) 8020 6521 0053

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