Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 420 · 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 02072015 are a date: day, month, year. Which chunking shows the date? (a) 02/0720/15 (b) 020/720/15 (c) 0207/20/15 (d) 02/07/2015
2. 2.🔢 You want to remember the number 3123256308. Which chunked version keeps every digit in the same order? (a) 312 325 3608 (b) 313 256 308 (c) 312 325 56308 (d) 312 325 6308
3. 3.🔢 You want to remember the number 503021057183. Which chunked version keeps every digit in the same order? (a) 5030 2105 713 (b) 5503 0210 57183 (c) 5030 2105 7813 (d) 5030 2105 7183
4. 4.🔢 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
5. 5.📅 The digits 21062009 are a date: day, month, year. Which chunking shows the date? (a) 21/0620/09 (b) 2106/20/09 (c) 21/06/2009 (d) 210/620/09
6. 6.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
7. 7.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
8. 8.📅 The digits 07021952 are a date: day, month, year. Which chunking shows the date? (a) 07/0219/52 (b) 07/02/1952 (c) 070/219/52 (d) 0702/19/52
9. 9.📅 The digits 11041963 are a date: day, month, year. Which chunking shows the date? (a) 1104/19/63 (b) 110/419/63 (c) 11/0419/63 (d) 11/04/1963
10. 10.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) changes daily (d) is very long
11. 11.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
12. 12.📅 The digits 26072024 are a date: day, month, year. Which chunking shows the date? (a) 2607/20/24 (b) 26/07/2024 (c) 260/720/24 (d) 26/0720/24
13. 13.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
14. 14.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
15. 15.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
16. 16.📅 The digits 26031987 are a date: day, month, year. Which chunking shows the date? (a) 2603/19/87 (b) 26/0319/87 (c) 26/03/1987 (d) 260/319/87
17. 17.📅 The digits 01062006 are a date: day, month, year. Which chunking shows the date? (a) 0106/20/06 (b) 01/0620/06 (c) 010/620/06 (d) 01/06/2006
18. 18.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 19 and 47 (d) 194 and 7
19. 19.🔢 You want to remember the number 9701266140. Which chunked version keeps every digit in the same order? (a) 970 216 6140 (b) 971 266 140 (c) 970 126 6140 (d) 970 122 66140
20. 20.📅 The digits 10051972 are a date: day, month, year. Which chunking shows the date? (a) 100/519/72 (b) 1005/19/72 (c) 10/05/1972 (d) 10/0519/72
21. 21.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
22. 22.🔢 You want to remember the number 839283448836. Which chunked version keeps every digit in the same order? (a) 8928 3448 836 (b) 8392 8344 8863 (c) 8339 2834 48836 (d) 8392 8344 8836
23. 23.🔢 You want to remember the number 6535321042. Which chunked version keeps every digit in the same order? (a) 653 531 2042 (b) 653 553 21042 (c) 653 521 042 (d) 653 532 1042
24. 24.📅 The digits 20031956 are a date: day, month, year. Which chunking shows the date? (a) 2003/19/56 (b) 20/03/1956 (c) 200/319/56 (d) 20/0319/56
25. 25.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
26. 26.📅 The digits 26041997 are a date: day, month, year. Which chunking shows the date? (a) 26/04/1997 (b) 26/0419/97 (c) 260/419/97 (d) 2604/19/97
27. 27.🔢 You want to remember the number 933938426555. Which chunked version keeps every digit in the same order? (a) 9393 8426 555 (b) 9339 3842 5655 (c) 9339 3842 6555 (d) 9339 3842 26555
28. 28.🔢 You want to remember the number 9027606765. Which chunked version keeps every digit in the same order? (a) 902 670 6765 (b) 902 760 66765 (c) 902 760 6765 (d) 902 760 675
29. 29.🔢 You want to remember the number 615706090. Which chunked version keeps every digit in the same order? (a) 615 076 090 (b) 617 060 90 (c) 615 706 090 (d) 615 570 6090
30. 30.🔢 Chunking works for… (a) nothing at all (b) only pictures (c) numbers and letter lists (d) only numbers
31. 31.🔢 You want to remember the number 421143095. Which chunked version keeps every digit in the same order? (a) 421 140 95 (b) 421 143 905 (c) 421 143 095 (d) 421 143 3095
32. 32.🔢 You want to remember the number 337137328272. Which chunked version keeps every digit in the same order? (a) 3371 3732 82772 (b) 3371 3732 872 (c) 3371 3732 8722 (d) 3371 3732 8272
33. 33.🔢 You want to remember the number 297371706. Which chunked version keeps every digit in the same order? (a) 297 371 706 (b) 297 371 06 (c) 297 731 706 (d) 297 737 1706
34. 34.🔢 You want to remember the number 231451453420. Which chunked version keeps every digit in the same order? (a) 2314 5145 3420 (b) 2134 5145 3420 (c) 2314 5153 420 (d) 2314 4514 53420
35. 35.🔢 You want to remember the number 842610471. Which chunked version keeps every digit in the same order? (a) 842 611 0471 (b) 842 610 471 (c) 842 610 417 (d) 842 614 71
36. 36.📅 The digits 09011957 are a date: day, month, year. Which chunking shows the date? (a) 09/01/1957 (b) 0901/19/57 (c) 09/0119/57 (d) 090/119/57
37. 37.📅 The digits 10022020 are a date: day, month, year. Which chunking shows the date? (a) 100/220/20 (b) 1002/20/20 (c) 10/0220/20 (d) 10/02/2020
38. 38.📅 The digits 12061954 are a date: day, month, year. Which chunking shows the date? (a) 1206/19/54 (b) 12/0619/54 (c) 12/06/1954 (d) 120/619/54
39. 39.🔢 You want to remember the number 5053595737. Which chunked version keeps every digit in the same order? (a) 505 359 5737 (b) 503 559 5737 (c) 505 595 737 (d) 505 359 57737
40. 40.📅 The digits 01012022 are a date: day, month, year. Which chunking shows the date? (a) 01/0120/22 (b) 0101/20/22 (c) 010/120/22 (d) 01/01/2022

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