Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 700 · 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) saying it backwards (b) writing it twice (c) reading very fast (d) splitting into groups
3. 3.📅 The digits 22061979 are a date: day, month, year. Which chunking shows the date? (a) 22/06/1979 (b) 22/0619/79 (c) 2206/19/79 (d) 220/619/79
4. 4.🔢 You want to remember the number 827252065. Which chunked version keeps every digit in the same order? (a) 827 252 065 (b) 827 252 056 (c) 827 520 65 (d) 827 725 2065
5. 5.🔢 You want to remember the number 721449969. Which chunked version keeps every digit in the same order? (a) 721 449 969 (b) 721 144 9969 (c) 271 449 969 (d) 721 449 69
6. 6.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) changes daily (c) means something to you (d) is very long
7. 7.🔢 You want to remember the number 259745045891. Which chunked version keeps every digit in the same order? (a) 2259 7450 45891 (b) 5974 5045 891 (c) 2597 4504 5891 (d) 2597 4505 4891
8. 8.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
9. 9.📅 The digits 07011999 are a date: day, month, year. Which chunking shows the date? (a) 0701/19/99 (b) 070/119/99 (c) 07/0119/99 (d) 07/01/1999
10. 10.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
11. 11.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
12. 12.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) numbers and letter lists (d) only pictures
13. 13.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
14. 14.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 1 and 947 (d) 194 and 7
15. 15.📅 The digits 25111960 are a date: day, month, year. Which chunking shows the date? (a) 2511/19/60 (b) 25/11/1960 (c) 25/1119/60 (d) 251/119/60
16. 16.🔢 You want to remember the number 7302249504. Which chunked version keeps every digit in the same order? (a) 730 224 9504 (b) 730 224 504 (c) 703 224 9504 (d) 730 224 95504
17. 17.📅 The digits 18041961 are a date: day, month, year. Which chunking shows the date? (a) 18/0419/61 (b) 180/419/61 (c) 1804/19/61 (d) 18/04/1961
18. 18.🔢 You want to remember the number 120175850685. Which chunked version keeps every digit in the same order? (a) 1201 7585 6085 (b) 1201 7585 0685 (c) 1207 5850 685 (d) 1201 7588 50685
19. 19.🔢 You want to remember the number 873100727. Which chunked version keeps every digit in the same order? (a) 873 100 77 (b) 783 100 727 (c) 873 100 7227 (d) 873 100 727
20. 20.📅 The digits 01081997 are a date: day, month, year. Which chunking shows the date? (a) 01/0819/97 (b) 010/819/97 (c) 01/08/1997 (d) 0108/19/97
21. 21.📅 The digits 02011977 are a date: day, month, year. Which chunking shows the date? (a) 0201/19/77 (b) 020/119/77 (c) 02/01/1977 (d) 02/0119/77
22. 22.📅 The digits 01121988 are a date: day, month, year. Which chunking shows the date? (a) 0112/19/88 (b) 01/1219/88 (c) 011/219/88 (d) 01/12/1988
23. 23.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
24. 24.📅 The digits 09021962 are a date: day, month, year. Which chunking shows the date? (a) 090/219/62 (b) 0902/19/62 (c) 09/02/1962 (d) 09/0219/62
25. 25.🔢 You want to remember the number 9032416707. Which chunked version keeps every digit in the same order? (a) 903 241 7607 (b) 900 324 16707 (c) 902 416 707 (d) 903 241 6707
26. 26.🔢 You want to remember the number 6050502928. Which chunked version keeps every digit in the same order? (a) 600 502 928 (b) 605 005 2928 (c) 605 505 02928 (d) 605 050 2928
27. 27.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
28. 28.🔢 You want to remember the number 7893399190. Which chunked version keeps every digit in the same order? (a) 789 339 9190 (b) 789 339 9910 (c) 893 399 190 (d) 789 339 91190
29. 29.🔢 You want to remember the number 614981648. Which chunked version keeps every digit in the same order? (a) 614 998 1648 (b) 614 981 648 (c) 649 816 48 (d) 614 891 648
30. 30.📅 The digits 24062022 are a date: day, month, year. Which chunking shows the date? (a) 24/06/2022 (b) 24/0620/22 (c) 2406/20/22 (d) 240/620/22
31. 31.🔢 You want to remember the number 178009908. Which chunked version keeps every digit in the same order? (a) 178 009 908 (b) 178 099 08 (c) 187 009 908 (d) 178 000 9908
32. 32.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
33. 33.🔢 You want to remember the number 455682374104. Which chunked version keeps every digit in the same order? (a) 4568 2374 104 (b) 4556 8273 4104 (c) 4556 8237 4104 (d) 4556 8237 41004
34. 34.🔢 You want to remember the number 556994450. Which chunked version keeps every digit in the same order? (a) 556 994 4450 (b) 556 994 450 (c) 556 949 450 (d) 556 944 50
35. 35.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is a smaller number (d) it is printed bigger
36. 36.🔢 You want to remember the number 4748433878. Which chunked version keeps every digit in the same order? (a) 478 433 878 (b) 474 483 3878 (c) 474 843 33878 (d) 474 843 3878
37. 37.🔢 You want to remember the number 1327471184. Which chunked version keeps every digit in the same order? (a) 113 274 71184 (b) 132 747 1184 (c) 137 247 1184 (d) 132 771 184
38. 38.🔢 You want to remember the number 571086877. Which chunked version keeps every digit in the same order? (a) 571 086 8877 (b) 571 088 77 (c) 571 068 877 (d) 571 086 877
39. 39.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
40. 40.📅 The digits 27051967 are a date: day, month, year. Which chunking shows the date? (a) 27/0519/67 (b) 270/519/67 (c) 2705/19/67 (d) 27/05/1967

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