Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 901 · 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 18031970 are a date: day, month, year. Which chunking shows the date? (a) 1803/19/70 (b) 18/0319/70 (c) 18/03/1970 (d) 180/319/70
2. 2.🔢 You want to remember the number 380103738. Which chunked version keeps every digit in the same order? (a) 380 010 3738 (b) 380 130 738 (c) 380 103 738 (d) 380 103 38
3. 3.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
4. 4.🔢 You want to remember the number 848050525. Which chunked version keeps every digit in the same order? (a) 848 050 552 (b) 848 055 0525 (c) 848 050 525 (d) 880 505 25
5. 5.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
6. 6.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 194 and 7 (d) 1 9 4 7
7. 7.📅 The digits 10041971 are a date: day, month, year. Which chunking shows the date? (a) 10/04/1971 (b) 10/0419/71 (c) 1004/19/71 (d) 100/419/71
8. 8.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
9. 9.📅 The digits 04071952 are a date: day, month, year. Which chunking shows the date? (a) 0407/19/52 (b) 04/0719/52 (c) 04/07/1952 (d) 040/719/52
10. 10.📅 The digits 20021971 are a date: day, month, year. Which chunking shows the date? (a) 200/219/71 (b) 20/0219/71 (c) 20/02/1971 (d) 2002/19/71
11. 11.📅 The digits 20022008 are a date: day, month, year. Which chunking shows the date? (a) 20/0220/08 (b) 20/02/2008 (c) 200/220/08 (d) 2002/20/08
12. 12.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) three chunks, not ten (c) it has fewer digits (d) it is printed bigger
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.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
15. 15.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.🔢 You want to remember the number 1499447057. Which chunked version keeps every digit in the same order? (a) 149 947 4057 (b) 114 994 47057 (c) 149 947 057 (d) 149 944 7057
17. 17.📅 The digits 06012004 are a date: day, month, year. Which chunking shows the date? (a) 06/0120/04 (b) 06/01/2004 (c) 0601/20/04 (d) 060/120/04
18. 18.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
19. 19.📅 The digits 13061968 are a date: day, month, year. Which chunking shows the date? (a) 130/619/68 (b) 13/0619/68 (c) 1306/19/68 (d) 13/06/1968
20. 20.📅 The digits 24011971 are a date: day, month, year. Which chunking shows the date? (a) 240/119/71 (b) 2401/19/71 (c) 24/01/1971 (d) 24/0119/71
21. 21.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
22. 22.📅 The digits 19101953 are a date: day, month, year. Which chunking shows the date? (a) 1910/19/53 (b) 19/10/1953 (c) 19/1019/53 (d) 191/019/53
23. 23.📅 The digits 27081997 are a date: day, month, year. Which chunking shows the date? (a) 27/08/1997 (b) 27/0819/97 (c) 2708/19/97 (d) 270/819/97
24. 24.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
25. 25.📅 The digits 01021968 are a date: day, month, year. Which chunking shows the date? (a) 01/02/1968 (b) 0102/19/68 (c) 01/0219/68 (d) 010/219/68
26. 26.📅 The digits 18042008 are a date: day, month, year. Which chunking shows the date? (a) 180/420/08 (b) 1804/20/08 (c) 18/0420/08 (d) 18/04/2008
27. 27.🔢 You want to remember the number 221591897928. Which chunked version keeps every digit in the same order? (a) 2215 9189 7928 (b) 2211 5918 97928 (c) 2215 9819 7928 (d) 2219 1897 928
28. 28.🔢 You want to remember the number 660803019. Which chunked version keeps every digit in the same order? (a) 660 030 19 (b) 660 800 319 (c) 660 803 019 (d) 666 080 3019
29. 29.🔢 You want to remember the number 6211459635. Which chunked version keeps every digit in the same order? (a) 621 154 9635 (b) 662 114 59635 (c) 621 145 9635 (d) 621 149 635
30. 30.🔢 You want to remember the number 4167781916. Which chunked version keeps every digit in the same order? (a) 416 778 19916 (b) 461 778 1916 (c) 416 778 1916 (d) 167 781 916
31. 31.📅 The digits 10061952 are a date: day, month, year. Which chunking shows the date? (a) 100/619/52 (b) 10/0619/52 (c) 1006/19/52 (d) 10/06/1952
32. 32.🔢 You want to remember the number 477061691. Which chunked version keeps every digit in the same order? (a) 477 601 691 (b) 477 006 1691 (c) 477 061 691 (d) 770 616 91
33. 33.🔢 You want to remember the number 416299645. Which chunked version keeps every digit in the same order? (a) 146 299 645 (b) 416 996 45 (c) 416 299 9645 (d) 416 299 645
34. 34.📅 The digits 19011970 are a date: day, month, year. Which chunking shows the date? (a) 1901/19/70 (b) 190/119/70 (c) 19/01/1970 (d) 19/0119/70
35. 35.📅 The digits 02101952 are a date: day, month, year. Which chunking shows the date? (a) 021/019/52 (b) 0210/19/52 (c) 02/1019/52 (d) 02/10/1952
36. 36.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
37. 37.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) has no pattern (d) is very long
38. 38.🔢 You want to remember the number 287126624020. Which chunked version keeps every digit in the same order? (a) 2871 2666 24020 (b) 2871 2662 020 (c) 2871 2662 4020 (d) 2817 2662 4020
39. 39.📅 The digits 28031977 are a date: day, month, year. Which chunking shows the date? (a) 28/03/1977 (b) 28/0319/77 (c) 280/319/77 (d) 2803/19/77
40. 40.📅 The digits 20121992 are a date: day, month, year. Which chunking shows the date? (a) 2012/19/92 (b) 20/12/1992 (c) 201/219/92 (d) 20/1219/92

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