Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 851 · 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 11 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 643015700291. Which chunked version keeps every digit in the same order? (a) 6430 1500 291 (b) 6430 1570 0921 (c) 6430 1570 0291 (d) 6430 1570 00291
3. 3.📅 The digits 27062020 are a date: day, month, year. Which chunking shows the date? (a) 27/0620/20 (b) 270/620/20 (c) 27/06/2020 (d) 2706/20/20
4. 4.🔢 You want to remember the number 828287763084. Which chunked version keeps every digit in the same order? (a) 8282 8777 63084 (b) 8282 8763 084 (c) 8282 8776 3084 (d) 8282 8767 3084
5. 5.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
6. 6.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) changes daily (d) means something to you
7. 7.🔢 You want to remember the number 878257283910. Which chunked version keeps every digit in the same order? (a) 8782 2572 83910 (b) 8782 5723 910 (c) 8782 5278 3910 (d) 8782 5728 3910
8. 8.📅 The digits 28022025 are a date: day, month, year. Which chunking shows the date? (a) 28/0220/25 (b) 28/02/2025 (c) 2802/20/25 (d) 280/220/25
9. 9.📅 The digits 17022004 are a date: day, month, year. Which chunking shows the date? (a) 17/02/2004 (b) 17/0220/04 (c) 1702/20/04 (d) 170/220/04
10. 10.🔢 You want to remember the number 129398516. Which chunked version keeps every digit in the same order? (a) 129 398 516 (b) 129 398 156 (c) 129 339 8516 (d) 123 985 16
11. 11.🔢 You want to remember the number 354810948. Which chunked version keeps every digit in the same order? (a) 354 810 48 (b) 354 810 948 (c) 354 811 0948 (d) 358 410 948
12. 12.🔢 You want to remember the number 3496052877. Which chunked version keeps every digit in the same order? (a) 349 660 52877 (b) 396 052 877 (c) 349 605 2877 (d) 394 605 2877
13. 13.🔢 Instead of holding 11 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 7311110373. Which chunked version keeps every digit in the same order? (a) 731 111 3073 (b) 731 111 0373 (c) 773 111 10373 (d) 711 110 373
15. 15.🔢 You want to remember the number 166192433668. Which chunked version keeps every digit in the same order? (a) 1661 9433 668 (b) 1661 9224 33668 (c) 6161 9243 3668 (d) 1661 9243 3668
16. 16.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
17. 17.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
18. 18.🔢 You want to remember the number 121832802. Which chunked version keeps every digit in the same order? (a) 112 832 802 (b) 121 832 802 (c) 121 328 02 (d) 122 183 2802
19. 19.📅 The digits 17052006 are a date: day, month, year. Which chunking shows the date? (a) 1705/20/06 (b) 17/05/2006 (c) 17/0520/06 (d) 170/520/06
20. 20.📅 The digits 02021959 are a date: day, month, year. Which chunking shows the date? (a) 020/219/59 (b) 02/02/1959 (c) 02/0219/59 (d) 0202/19/59
21. 21.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
22. 22.📅 The digits 10101994 are a date: day, month, year. Which chunking shows the date? (a) 101/019/94 (b) 10/10/1994 (c) 10/1019/94 (d) 1010/19/94
23. 23.📅 The digits 14031964 are a date: day, month, year. Which chunking shows the date? (a) 14/0319/64 (b) 1403/19/64 (c) 14/03/1964 (d) 140/319/64
24. 24.🔢 You want to remember the number 817184811979. Which chunked version keeps every digit in the same order? (a) 8171 8481 179 (b) 8171 8848 11979 (c) 1871 8481 1979 (d) 8171 8481 1979
25. 25.🔢 You want to remember the number 659576686000. Which chunked version keeps every digit in the same order? (a) 6595 7668 6000 (b) 6595 7668 600 (c) 5695 7668 6000 (d) 6595 7668 66000
26. 26.🔢 You want to remember the number 7147574276. Which chunked version keeps every digit in the same order? (a) 714 757 426 (b) 714 757 42766 (c) 741 757 4276 (d) 714 757 4276
27. 27.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) only numbers (d) numbers and letter lists
28. 28.📅 The digits 07112011 are a date: day, month, year. Which chunking shows the date? (a) 071/120/11 (b) 0711/20/11 (c) 07/11/2011 (d) 07/1120/11
29. 29.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
30. 30.🔢 You want to remember the number 529372938773. Which chunked version keeps every digit in the same order? (a) 2937 2938 773 (b) 5293 7293 7873 (c) 5293 7293 8773 (d) 5293 3729 38773
31. 31.🔢 You want to remember the number 222358590828. Which chunked version keeps every digit in the same order? (a) 2223 5859 0882 (b) 2223 5855 90828 (c) 2223 5859 028 (d) 2223 5859 0828
32. 32.📅 The digits 27111960 are a date: day, month, year. Which chunking shows the date? (a) 2711/19/60 (b) 271/119/60 (c) 27/11/1960 (d) 27/1119/60
33. 33.📅 The digits 13061950 are a date: day, month, year. Which chunking shows the date? (a) 13/06/1950 (b) 13/0619/50 (c) 1306/19/50 (d) 130/619/50
34. 34.📅 The digits 01011999 are a date: day, month, year. Which chunking shows the date? (a) 010/119/99 (b) 0101/19/99 (c) 01/0119/99 (d) 01/01/1999
35. 35.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
36. 36.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
37. 37.🔢 You want to remember the number 138493612. Which chunked version keeps every digit in the same order? (a) 138 493 62 (b) 138 493 621 (c) 138 493 3612 (d) 138 493 612
38. 38.📅 The digits 17082001 are a date: day, month, year. Which chunking shows the date? (a) 170/820/01 (b) 17/08/2001 (c) 17/0820/01 (d) 1708/20/01
39. 39.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 19 and 47 (d) 1 9 4 7
40. 40.🔢 You want to remember the number 222772346. Which chunked version keeps every digit in the same order? (a) 222 772 36 (b) 222 772 364 (c) 222 277 2346 (d) 222 772 346

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