Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 843 · 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.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
3. 3.📅 The digits 14111950 are a date: day, month, year. Which chunking shows the date? (a) 14/1119/50 (b) 141/119/50 (c) 1411/19/50 (d) 14/11/1950
4. 4.📅 The digits 05011998 are a date: day, month, year. Which chunking shows the date? (a) 0501/19/98 (b) 050/119/98 (c) 05/0119/98 (d) 05/01/1998
5. 5.📅 The digits 11112000 are a date: day, month, year. Which chunking shows the date? (a) 1111/20/00 (b) 11/1120/00 (c) 111/120/00 (d) 11/11/2000
6. 6.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
7. 7.🔢 You want to remember the number 3022237822. Which chunked version keeps every digit in the same order? (a) 302 223 782 (b) 302 223 7822 (c) 302 223 37822 (d) 320 223 7822
8. 8.🔢 Chunking works for… (a) nothing at all (b) only pictures (c) numbers and letter lists (d) only numbers
9. 9.📅 The digits 13091976 are a date: day, month, year. Which chunking shows the date? (a) 1309/19/76 (b) 130/919/76 (c) 13/09/1976 (d) 13/0919/76
10. 10.📅 The digits 10051959 are a date: day, month, year. Which chunking shows the date? (a) 100/519/59 (b) 10/05/1959 (c) 10/0519/59 (d) 1005/19/59
11. 11.🔢 You want to remember the number 3542744289. Which chunked version keeps every digit in the same order? (a) 354 277 44289 (b) 354 274 489 (c) 354 274 4289 (d) 352 474 4289
12. 12.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
13. 13.📅 The digits 25072018 are a date: day, month, year. Which chunking shows the date? (a) 2507/20/18 (b) 25/0720/18 (c) 250/720/18 (d) 25/07/2018
14. 14.📅 The digits 15121990 are a date: day, month, year. Which chunking shows the date? (a) 1512/19/90 (b) 15/12/1990 (c) 151/219/90 (d) 15/1219/90
15. 15.📅 The digits 11011954 are a date: day, month, year. Which chunking shows the date? (a) 11/01/1954 (b) 110/119/54 (c) 1101/19/54 (d) 11/0119/54
16. 16.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
17. 17.📅 The digits 08011959 are a date: day, month, year. Which chunking shows the date? (a) 08/01/1959 (b) 08/0119/59 (c) 0801/19/59 (d) 080/119/59
18. 18.📅 The digits 01091954 are a date: day, month, year. Which chunking shows the date? (a) 0109/19/54 (b) 010/919/54 (c) 01/0919/54 (d) 01/09/1954
19. 19.📅 The digits 25052022 are a date: day, month, year. Which chunking shows the date? (a) 250/520/22 (b) 25/0520/22 (c) 25/05/2022 (d) 2505/20/22
20. 20.🔢 You want to remember the number 363780408. Which chunked version keeps every digit in the same order? (a) 363 780 480 (b) 637 804 08 (c) 363 780 0408 (d) 363 780 408
21. 21.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 1 9 4 7 (d) 19 and 47
22. 22.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
23. 23.🔢 You want to remember the number 379326158590. Which chunked version keeps every digit in the same order? (a) 3793 2615 8590 (b) 7932 6158 590 (c) 3739 2615 8590 (d) 3793 2611 58590
24. 24.📅 The digits 19082022 are a date: day, month, year. Which chunking shows the date? (a) 19/0820/22 (b) 190/820/22 (c) 19/08/2022 (d) 1908/20/22
25. 25.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
26. 26.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
27. 27.🔢 You want to remember the number 958690259781. Which chunked version keeps every digit in the same order? (a) 9586 9902 59781 (b) 9586 9025 9871 (c) 9586 9025 9781 (d) 9586 9029 781
28. 28.📅 The digits 21051996 are a date: day, month, year. Which chunking shows the date? (a) 210/519/96 (b) 2105/19/96 (c) 21/0519/96 (d) 21/05/1996
29. 29.📅 The digits 02112025 are a date: day, month, year. Which chunking shows the date? (a) 0211/20/25 (b) 02/1120/25 (c) 02/11/2025 (d) 021/120/25
30. 30.🔢 You want to remember the number 373760422. Which chunked version keeps every digit in the same order? (a) 373 760 422 (b) 373 604 22 (c) 373 760 4222 (d) 373 760 242
31. 31.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) three chunks, not ten (d) it has fewer digits
32. 32.🔢 You want to remember the number 4917496018. Which chunked version keeps every digit in the same order? (a) 941 749 6018 (b) 491 749 66018 (c) 917 496 018 (d) 491 749 6018
33. 33.📅 The digits 21121980 are a date: day, month, year. Which chunking shows the date? (a) 211/219/80 (b) 21/12/1980 (c) 2112/19/80 (d) 21/1219/80
34. 34.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
35. 35.📅 The digits 15041992 are a date: day, month, year. Which chunking shows the date? (a) 150/419/92 (b) 1504/19/92 (c) 15/04/1992 (d) 15/0419/92
36. 36.📅 The digits 20072008 are a date: day, month, year. Which chunking shows the date? (a) 20/0720/08 (b) 2007/20/08 (c) 200/720/08 (d) 20/07/2008
37. 37.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
38. 38.🔢 You want to remember the number 436624164. Which chunked version keeps every digit in the same order? (a) 436 642 164 (b) 436 624 164 (c) 436 624 16 (d) 436 624 4164
39. 39.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
40. 40.🔢 You want to remember the number 9563344068. Which chunked version keeps every digit in the same order? (a) 956 344 068 (b) 956 334 4068 (c) 965 334 4068 (d) 956 334 44068

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