Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 945 · 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 12-digit number is split into chunks of 4 digits each. How many chunks is that?
2. 2.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) writing it twice (d) splitting into groups
3. 3.🔢 You want to remember the number 397209011. Which chunked version keeps every digit in the same order? (a) 372 090 11 (b) 397 220 9011 (c) 397 209 101 (d) 397 209 011
4. 4.📅 The digits 09101989 are a date: day, month, year. Which chunking shows the date? (a) 09/10/1989 (b) 0910/19/89 (c) 09/1019/89 (d) 091/019/89
5. 5.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
6. 6.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 1 9 4 7 (d) 19 and 47
7. 7.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
8. 8.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
9. 9.📅 The digits 07012020 are a date: day, month, year. Which chunking shows the date? (a) 0701/20/20 (b) 07/0120/20 (c) 070/120/20 (d) 07/01/2020
10. 10.📅 The digits 20081999 are a date: day, month, year. Which chunking shows the date? (a) 2008/19/99 (b) 20/08/1999 (c) 20/0819/99 (d) 200/819/99
11. 11.🔢 You want to remember the number 695868067. Which chunked version keeps every digit in the same order? (a) 965 868 067 (b) 695 868 067 (c) 695 860 67 (d) 695 868 0677
12. 12.📅 The digits 24051956 are a date: day, month, year. Which chunking shows the date? (a) 240/519/56 (b) 24/0519/56 (c) 2405/19/56 (d) 24/05/1956
13. 13.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
14. 14.🔢 You want to remember the number 560897551121. Which chunked version keeps every digit in the same order? (a) 5608 7955 1121 (b) 5608 9751 121 (c) 5608 9755 11121 (d) 5608 9755 1121
15. 15.📅 The digits 14021959 are a date: day, month, year. Which chunking shows the date? (a) 14/02/1959 (b) 140/219/59 (c) 1402/19/59 (d) 14/0219/59
16. 16.🔢 A chunk is easiest to keep when it… (a) means something to you (b) changes daily (c) is very long (d) has no pattern
17. 17.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
18. 18.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
19. 19.📅 The digits 07051980 are a date: day, month, year. Which chunking shows the date? (a) 07/0519/80 (b) 07/05/1980 (c) 0705/19/80 (d) 070/519/80
20. 20.🔢 You want to remember the number 3391489523. Which chunked version keeps every digit in the same order? (a) 339 114 89523 (b) 391 489 523 (c) 339 149 8523 (d) 339 148 9523
21. 21.🔢 You want to remember the number 325772246. Which chunked version keeps every digit in the same order? (a) 325 772 46 (b) 235 772 246 (c) 325 777 2246 (d) 325 772 246
22. 22.📅 The digits 21091953 are a date: day, month, year. Which chunking shows the date? (a) 2109/19/53 (b) 21/09/1953 (c) 210/919/53 (d) 21/0919/53
23. 23.📅 The digits 18031982 are a date: day, month, year. Which chunking shows the date? (a) 180/319/82 (b) 18/0319/82 (c) 18/03/1982 (d) 1803/19/82
24. 24.🔢 You want to remember the number 2282745270. Which chunked version keeps every digit in the same order? (a) 228 274 52270 (b) 282 745 270 (c) 228 274 5270 (d) 228 247 5270
25. 25.📅 The digits 27081987 are a date: day, month, year. Which chunking shows the date? (a) 270/819/87 (b) 27/0819/87 (c) 2708/19/87 (d) 27/08/1987
26. 26.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
27. 27.📅 The digits 01011950 are a date: day, month, year. Which chunking shows the date? (a) 01/01/1950 (b) 010/119/50 (c) 0101/19/50 (d) 01/0119/50
28. 28.🔢 You want to remember the number 377434433092. Which chunked version keeps every digit in the same order? (a) 3774 3443 3092 (b) 3743 4433 092 (c) 3774 3443 0392 (d) 3774 3443 30992
29. 29.🔢 You want to remember the number 365185403176. Which chunked version keeps every digit in the same order? (a) 3651 8540 03176 (b) 3651 8540 176 (c) 3651 8540 3716 (d) 3651 8540 3176
30. 30.📅 The digits 01061986 are a date: day, month, year. Which chunking shows the date? (a) 0106/19/86 (b) 01/0619/86 (c) 01/06/1986 (d) 010/619/86
31. 31.📅 The digits 21101976 are a date: day, month, year. Which chunking shows the date? (a) 211/019/76 (b) 2110/19/76 (c) 21/10/1976 (d) 21/1019/76
32. 32.🔢 You want to remember the number 685576987203. Which chunked version keeps every digit in the same order? (a) 6855 7698 7203 (b) 6855 7669 87203 (c) 6857 5698 7203 (d) 6855 7698 703
33. 33.📅 The digits 09041984 are a date: day, month, year. Which chunking shows the date? (a) 09/0419/84 (b) 0904/19/84 (c) 09/04/1984 (d) 090/419/84
34. 34.🔢 You want to remember the number 544898167774. Which chunked version keeps every digit in the same order? (a) 5448 9816 7774 (b) 5448 9816 77744 (c) 5484 9816 7774 (d) 5448 9817 774
35. 35.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
36. 36.📅 The digits 09011970 are a date: day, month, year. Which chunking shows the date? (a) 09/01/1970 (b) 090/119/70 (c) 0901/19/70 (d) 09/0119/70
37. 37.📅 The digits 24101954 are a date: day, month, year. Which chunking shows the date? (a) 24/1019/54 (b) 2410/19/54 (c) 241/019/54 (d) 24/10/1954
38. 38.📅 The digits 25092015 are a date: day, month, year. Which chunking shows the date? (a) 250/920/15 (b) 25/0920/15 (c) 2509/20/15 (d) 25/09/2015
39. 39.📅 The digits 24091994 are a date: day, month, year. Which chunking shows the date? (a) 2409/19/94 (b) 24/0919/94 (c) 240/919/94 (d) 24/09/1994
40. 40.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it has fewer digits (d) it is a smaller number

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