Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 995 · 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 has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
2. 2.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
3. 3.📅 The digits 28122001 are a date: day, month, year. Which chunking shows the date? (a) 28/12/2001 (b) 2812/20/01 (c) 28/1220/01 (d) 281/220/01
4. 4.🔢 Chunking works for… (a) only pictures (b) only numbers (c) nothing at all (d) numbers and letter lists
5. 5.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
6. 6.🔢 You want to remember the number 792061550. Which chunked version keeps every digit in the same order? (a) 792 206 1550 (b) 792 061 55 (c) 792 061 505 (d) 792 061 550
7. 7.🔢 You want to remember the number 6468756582. Which chunked version keeps every digit in the same order? (a) 646 875 65822 (b) 648 675 6582 (c) 646 875 6582 (d) 646 756 582
8. 8.🔢 You want to remember the number 2409644497. Which chunked version keeps every digit in the same order? (a) 249 644 497 (b) 240 966 44497 (c) 240 964 4497 (d) 240 964 4947
9. 9.🔢 You want to remember the number 9743006192. Which chunked version keeps every digit in the same order? (a) 974 300 6192 (b) 974 300 692 (c) 974 300 6129 (d) 974 300 61992
10. 10.🔢 A chunk is easiest to keep when it… (a) means something to you (b) changes daily (c) has no pattern (d) is very long
11. 11.📅 The digits 02091992 are a date: day, month, year. Which chunking shows the date? (a) 02/0919/92 (b) 020/919/92 (c) 02/09/1992 (d) 0209/19/92
12. 12.📅 The digits 04082023 are a date: day, month, year. Which chunking shows the date? (a) 04/0820/23 (b) 040/820/23 (c) 04/08/2023 (d) 0408/20/23
13. 13.📅 The digits 14062004 are a date: day, month, year. Which chunking shows the date? (a) 140/620/04 (b) 1406/20/04 (c) 14/0620/04 (d) 14/06/2004
14. 14.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
15. 15.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
16. 16.🔢 You want to remember the number 5535934068. Which chunked version keeps every digit in the same order? (a) 553 593 4068 (b) 553 593 468 (c) 553 593 4086 (d) 553 593 44068
17. 17.🔢 You want to remember the number 7346489342. Which chunked version keeps every digit in the same order? (a) 734 648 3942 (b) 734 648 93342 (c) 734 648 9342 (d) 734 648 942
18. 18.🔢 You want to remember the number 3017536497. Which chunked version keeps every digit in the same order? (a) 330 175 36497 (b) 301 536 497 (c) 301 753 6497 (d) 031 753 6497
19. 19.🔢 You want to remember the number 4470159216. Which chunked version keeps every digit in the same order? (a) 447 015 99216 (b) 447 015 9216 (c) 470 159 216 (d) 447 015 9261
20. 20.📅 The digits 04121963 are a date: day, month, year. Which chunking shows the date? (a) 04/12/1963 (b) 0412/19/63 (c) 04/1219/63 (d) 041/219/63
21. 21.📅 The digits 25091988 are a date: day, month, year. Which chunking shows the date? (a) 2509/19/88 (b) 250/919/88 (c) 25/0919/88 (d) 25/09/1988
22. 22.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
23. 23.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
24. 24.🔢 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
25. 25.📅 The digits 07042025 are a date: day, month, year. Which chunking shows the date? (a) 070/420/25 (b) 07/04/2025 (c) 0704/20/25 (d) 07/0420/25
26. 26.📅 The digits 23091963 are a date: day, month, year. Which chunking shows the date? (a) 2309/19/63 (b) 23/0919/63 (c) 23/09/1963 (d) 230/919/63
27. 27.🔢 You want to remember the number 587198064980. Which chunked version keeps every digit in the same order? (a) 5879 8064 980 (b) 5871 9806 64980 (c) 5871 9806 4980 (d) 5871 9806 4890
28. 28.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
29. 29.📅 The digits 27021972 are a date: day, month, year. Which chunking shows the date? (a) 27/02/1972 (b) 270/219/72 (c) 27/0219/72 (d) 2702/19/72
30. 30.📅 The digits 01091963 are a date: day, month, year. Which chunking shows the date? (a) 010/919/63 (b) 0109/19/63 (c) 01/09/1963 (d) 01/0919/63
31. 31.🔢 You want to remember the number 385710485199. Which chunked version keeps every digit in the same order? (a) 3857 1048 5199 (b) 3857 0148 5199 (c) 3571 0485 199 (d) 3857 1104 85199
32. 32.🔢 You want to remember the number 582320972395. Which chunked version keeps every digit in the same order? (a) 5823 2097 2395 (b) 5823 2209 72395 (c) 5823 2097 2935 (d) 5832 0972 395
33. 33.🔢 You want to remember the number 3527418898. Which chunked version keeps every digit in the same order? (a) 352 418 898 (b) 352 714 8898 (c) 352 741 8898 (d) 352 741 18898
34. 34.📅 The digits 16031969 are a date: day, month, year. Which chunking shows the date? (a) 160/319/69 (b) 1603/19/69 (c) 16/0319/69 (d) 16/03/1969
35. 35.🔢 You want to remember the number 269238223861. Which chunked version keeps every digit in the same order? (a) 2692 8322 3861 (b) 2692 3823 861 (c) 2699 2382 23861 (d) 2692 3822 3861
36. 36.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
37. 37.📅 The digits 13092000 are a date: day, month, year. Which chunking shows the date? (a) 13/0920/00 (b) 13/09/2000 (c) 1309/20/00 (d) 130/920/00
38. 38.🔢 You want to remember the number 535266362. Which chunked version keeps every digit in the same order? (a) 352 663 62 (b) 535 266 3662 (c) 355 266 362 (d) 535 266 362
39. 39.🔢 You want to remember the number 247564372070. Which chunked version keeps every digit in the same order? (a) 2457 6437 2070 (b) 2756 4372 070 (c) 2475 6437 2070 (d) 2475 6443 72070
40. 40.📅 The digits 16012005 are a date: day, month, year. Which chunking shows the date? (a) 16/01/2005 (b) 1601/20/05 (c) 16/0120/05 (d) 160/120/05

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