Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 745 · 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 4-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
3. 3.📅 The digits 28012002 are a date: day, month, year. Which chunking shows the date? (a) 280/120/02 (b) 28/0120/02 (c) 28/01/2002 (d) 2801/20/02
4. 4.📅 The digits 08072018 are a date: day, month, year. Which chunking shows the date? (a) 08/07/2018 (b) 08/0720/18 (c) 0807/20/18 (d) 080/720/18
5. 5.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
6. 6.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
7. 7.🔢 You want to remember the number 4650016139. Which chunked version keeps every digit in the same order? (a) 465 000 16139 (b) 465 001 6139 (c) 465 010 6139 (d) 465 001 639
8. 8.📅 The digits 25011964 are a date: day, month, year. Which chunking shows the date? (a) 250/119/64 (b) 2501/19/64 (c) 25/0119/64 (d) 25/01/1964
9. 9.📅 The digits 12071986 are a date: day, month, year. Which chunking shows the date? (a) 1207/19/86 (b) 12/0719/86 (c) 120/719/86 (d) 12/07/1986
10. 10.📅 The digits 02052015 are a date: day, month, year. Which chunking shows the date? (a) 0205/20/15 (b) 02/05/2015 (c) 02/0520/15 (d) 020/520/15
11. 11.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
12. 12.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
13. 13.🔢 You want to remember the number 491916938. Which chunked version keeps every digit in the same order? (a) 499 169 38 (b) 491 196 938 (c) 491 916 9338 (d) 491 916 938
14. 14.🔢 You want to remember the number 7259400437. Which chunked version keeps every digit in the same order? (a) 725 994 00437 (b) 752 940 0437 (c) 725 940 047 (d) 725 940 0437
15. 15.📅 The digits 23071968 are a date: day, month, year. Which chunking shows the date? (a) 23/07/1968 (b) 230/719/68 (c) 2307/19/68 (d) 23/0719/68
16. 16.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 1 and 947 (d) 19 and 47
17. 17.🔢 You want to remember the number 7230575210. Which chunked version keeps every digit in the same order? (a) 722 305 75210 (b) 723 057 2510 (c) 723 057 5210 (d) 723 057 520
18. 18.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
19. 19.🔢 You want to remember the number 9214086090. Which chunked version keeps every digit in the same order? (a) 921 048 6090 (b) 921 408 690 (c) 921 408 6090 (d) 922 140 86090
20. 20.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
21. 21.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
22. 22.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
23. 23.🔢 You want to remember the number 958610611. Which chunked version keeps every digit in the same order? (a) 986 106 11 (b) 985 610 611 (c) 958 861 0611 (d) 958 610 611
24. 24.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
25. 25.🔢 You want to remember the number 2661942243. Which chunked version keeps every digit in the same order? (a) 626 194 2243 (b) 266 142 243 (c) 266 194 2243 (d) 266 194 22243
26. 26.🔢 You want to remember the number 752052383. Which chunked version keeps every digit in the same order? (a) 752 025 383 (b) 752 023 83 (c) 752 052 383 (d) 755 205 2383
27. 27.🔢 You want to remember the number 471981718082. Which chunked version keeps every digit in the same order? (a) 4719 1718 082 (b) 4719 8171 80822 (c) 4719 8171 0882 (d) 4719 8171 8082
28. 28.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) numbers and letter lists (d) only numbers
29. 29.📅 The digits 27031983 are a date: day, month, year. Which chunking shows the date? (a) 270/319/83 (b) 2703/19/83 (c) 27/0319/83 (d) 27/03/1983
30. 30.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
31. 31.📅 The digits 21121971 are a date: day, month, year. Which chunking shows the date? (a) 21/1219/71 (b) 211/219/71 (c) 2112/19/71 (d) 21/12/1971
32. 32.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it has fewer digits (c) it is printed bigger (d) it is a smaller number
33. 33.📅 The digits 01021965 are a date: day, month, year. Which chunking shows the date? (a) 010/219/65 (b) 01/02/1965 (c) 01/0219/65 (d) 0102/19/65
34. 34.🔢 You want to remember the number 520002544662. Which chunked version keeps every digit in the same order? (a) 5200 0254 4662 (b) 5200 0524 4662 (c) 5000 2544 662 (d) 5200 0025 44662
35. 35.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) is very long (d) has no pattern
36. 36.📅 The digits 15062002 are a date: day, month, year. Which chunking shows the date? (a) 1506/20/02 (b) 15/06/2002 (c) 150/620/02 (d) 15/0620/02
37. 37.🔢 You want to remember the number 3950561661. Which chunked version keeps every digit in the same order? (a) 395 055 61661 (b) 395 506 1661 (c) 395 056 161 (d) 395 056 1661
38. 38.🔢 You want to remember the number 8101288301. Which chunked version keeps every digit in the same order? (a) 811 288 301 (b) 810 182 8301 (c) 810 128 8301 (d) 810 128 88301
39. 39.🔢 You want to remember the number 426008294530. Which chunked version keeps every digit in the same order? (a) 4260 0829 45330 (b) 4260 0289 4530 (c) 4260 0824 530 (d) 4260 0829 4530
40. 40.📅 The digits 13062023 are a date: day, month, year. Which chunking shows the date? (a) 130/620/23 (b) 1306/20/23 (c) 13/0620/23 (d) 13/06/2023

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