Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 403 · 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 13021986 are a date: day, month, year. Which chunking shows the date? (a) 13/02/1986 (b) 1302/19/86 (c) 130/219/86 (d) 13/0219/86
2. 2.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
3. 3.🔢 You want to remember the number 938517366827. Which chunked version keeps every digit in the same order? (a) 9385 1736 687 (b) 9385 1736 6827 (c) 9385 1736 68827 (d) 9385 1736 8627
4. 4.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
5. 5.🔢 You want to remember the number 5509310033. Which chunked version keeps every digit in the same order? (a) 550 931 0033 (b) 505 931 0033 (c) 550 931 00033 (d) 550 931 033
6. 6.📅 The digits 28041954 are a date: day, month, year. Which chunking shows the date? (a) 28/0419/54 (b) 28/04/1954 (c) 2804/19/54 (d) 280/419/54
7. 7.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) splitting into groups (d) writing it twice
8. 8.📅 The digits 08031952 are a date: day, month, year. Which chunking shows the date? (a) 080/319/52 (b) 08/0319/52 (c) 08/03/1952 (d) 0803/19/52
9. 9.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
10. 10.🔢 You want to remember the number 249400243. Which chunked version keeps every digit in the same order? (a) 249 400 23 (b) 224 940 0243 (c) 249 400 423 (d) 249 400 243
11. 11.🔢 You want to remember the number 4775784257. Which chunked version keeps every digit in the same order? (a) 477 574 257 (b) 477 574 8257 (c) 477 578 4257 (d) 477 578 44257
12. 12.🔢 You want to remember the number 805484256. Which chunked version keeps every digit in the same order? (a) 805 484 256 (b) 805 484 265 (c) 805 548 4256 (d) 805 842 56
13. 13.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
14. 14.🔢 You want to remember the number 8497081232. Which chunked version keeps every digit in the same order? (a) 849 708 1232 (b) 849 708 122 (c) 849 700 81232 (d) 849 708 2132
15. 15.🔢 You want to remember the number 718370550416. Which chunked version keeps every digit in the same order? (a) 7837 0550 416 (b) 7183 7705 50416 (c) 7813 7055 0416 (d) 7183 7055 0416
16. 16.📅 The digits 21011951 are a date: day, month, year. Which chunking shows the date? (a) 21/01/1951 (b) 21/0119/51 (c) 2101/19/51 (d) 210/119/51
17. 17.📅 The digits 04062025 are a date: day, month, year. Which chunking shows the date? (a) 0406/20/25 (b) 04/06/2025 (c) 040/620/25 (d) 04/0620/25
18. 18.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) changes daily (c) is very long (d) means something to you
19. 19.🔢 You want to remember the number 588614712471. Which chunked version keeps every digit in the same order? (a) 5886 1471 247 (b) 5886 6147 12471 (c) 5886 1471 2471 (d) 5886 1471 2741
20. 20.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
21. 21.🔢 You want to remember the number 199724583289. Which chunked version keeps every digit in the same order? (a) 1199 7245 83289 (b) 1997 2458 3289 (c) 1997 2458 3298 (d) 1997 2458 328
22. 22.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
23. 23.🔢 You want to remember the number 171290332. Which chunked version keeps every digit in the same order? (a) 171 293 032 (b) 171 290 0332 (c) 172 903 32 (d) 171 290 332
24. 24.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
25. 25.📅 The digits 28061996 are a date: day, month, year. Which chunking shows the date? (a) 280/619/96 (b) 28/06/1996 (c) 2806/19/96 (d) 28/0619/96
26. 26.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
27. 27.📅 The digits 11021972 are a date: day, month, year. Which chunking shows the date? (a) 11/02/1972 (b) 110/219/72 (c) 11/0219/72 (d) 1102/19/72
28. 28.📅 The digits 17041983 are a date: day, month, year. Which chunking shows the date? (a) 170/419/83 (b) 1704/19/83 (c) 17/0419/83 (d) 17/04/1983
29. 29.🔢 You want to remember the number 352585670159. Which chunked version keeps every digit in the same order? (a) 3525 8567 0159 (b) 3525 8576 0159 (c) 3552 5856 70159 (d) 5258 5670 159
30. 30.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
31. 31.🔢 You want to remember the number 859020602. Which chunked version keeps every digit in the same order? (a) 859 206 02 (b) 859 020 602 (c) 895 020 602 (d) 859 020 6602
32. 32.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
33. 33.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
34. 34.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
35. 35.🔢 You want to remember the number 821171123. Which chunked version keeps every digit in the same order? (a) 822 117 1123 (b) 211 711 23 (c) 821 171 132 (d) 821 171 123
36. 36.🔢 You want to remember the number 291051112. Which chunked version keeps every digit in the same order? (a) 291 051 112 (b) 299 105 1112 (c) 291 051 12 (d) 291 015 112
37. 37.🔢 You want to remember the number 224976084982. Which chunked version keeps every digit in the same order? (a) 2249 7760 84982 (b) 2249 7084 982 (c) 2249 7680 4982 (d) 2249 7608 4982
38. 38.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
39. 39.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
40. 40.📅 The digits 07111970 are a date: day, month, year. Which chunking shows the date? (a) 07/1119/70 (b) 0711/19/70 (c) 07/11/1970 (d) 071/119/70

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