Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 103 · 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 6-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 19 and 47 (d) 1 and 947
3. 3.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
4. 4.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
5. 5.📅 The digits 16012022 are a date: day, month, year. Which chunking shows the date? (a) 16/0120/22 (b) 1601/20/22 (c) 160/120/22 (d) 16/01/2022
6. 6.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
7. 7.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
8. 8.🔢 You want to remember the number 670152472. Which chunked version keeps every digit in the same order? (a) 670 152 72 (b) 667 015 2472 (c) 670 152 472 (d) 607 152 472
9. 9.🔢 You want to remember the number 599214571. Which chunked version keeps every digit in the same order? (a) 592 914 571 (b) 599 214 57 (c) 599 921 4571 (d) 599 214 571
10. 10.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
11. 11.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) it is printed bigger (d) three chunks, not ten
12. 12.🔢 Chunking works for… (a) nothing at all (b) only pictures (c) numbers and letter lists (d) only numbers
13. 13.📅 The digits 10082013 are a date: day, month, year. Which chunking shows the date? (a) 10/08/2013 (b) 1008/20/13 (c) 100/820/13 (d) 10/0820/13
14. 14.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
15. 15.🔢 You want to remember the number 785021361. Which chunked version keeps every digit in the same order? (a) 785 021 31 (b) 785 021 361 (c) 785 502 1361 (d) 785 201 361
16. 16.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
17. 17.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
18. 18.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
19. 19.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
20. 20.📅 The digits 06011975 are a date: day, month, year. Which chunking shows the date? (a) 06/01/1975 (b) 06/0119/75 (c) 060/119/75 (d) 0601/19/75
21. 21.🔢 You want to remember the number 896856792050. Which chunked version keeps every digit in the same order? (a) 8968 5679 2050 (b) 8968 5679 20500 (c) 8986 5679 2050 (d) 8968 5692 050
22. 22.🔢 You want to remember the number 2583072748. Which chunked version keeps every digit in the same order? (a) 258 307 27448 (b) 583 072 748 (c) 258 307 2748 (d) 258 307 2478
23. 23.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
24. 24.🔢 You want to remember the number 6081413142. Which chunked version keeps every digit in the same order? (a) 608 113 142 (b) 608 141 13142 (c) 608 411 3142 (d) 608 141 3142
25. 25.🔢 You want to remember the number 750415569. Which chunked version keeps every digit in the same order? (a) 750 415 569 (b) 754 155 69 (c) 750 451 569 (d) 750 415 5699
26. 26.📅 The digits 09101959 are a date: day, month, year. Which chunking shows the date? (a) 091/019/59 (b) 0910/19/59 (c) 09/10/1959 (d) 09/1019/59
27. 27.📅 The digits 11042014 are a date: day, month, year. Which chunking shows the date? (a) 1104/20/14 (b) 11/0420/14 (c) 11/04/2014 (d) 110/420/14
28. 28.🔢 You want to remember the number 806162747065. Which chunked version keeps every digit in the same order? (a) 8601 6274 7065 (b) 8061 2747 065 (c) 8061 6274 70655 (d) 8061 6274 7065
29. 29.🔢 You want to remember the number 228556089. Which chunked version keeps every digit in the same order? (a) 228 556 89 (b) 225 856 089 (c) 228 855 6089 (d) 228 556 089
30. 30.🔢 You want to remember the number 933952265. Which chunked version keeps every digit in the same order? (a) 933 952 65 (b) 933 952 256 (c) 933 955 2265 (d) 933 952 265
31. 31.🔢 You want to remember the number 126602259. Which chunked version keeps every digit in the same order? (a) 162 602 259 (b) 266 022 59 (c) 126 602 2259 (d) 126 602 259
32. 32.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
33. 33.🔢 You want to remember the number 1569548049. Which chunked version keeps every digit in the same order? (a) 156 954 849 (b) 156 945 8049 (c) 156 954 8049 (d) 156 954 48049
34. 34.🔢 You want to remember the number 206008550572. Which chunked version keeps every digit in the same order? (a) 2060 8055 0572 (b) 2060 0855 05572 (c) 2600 8550 572 (d) 2060 0855 0572
35. 35.📅 The digits 10052019 are a date: day, month, year. Which chunking shows the date? (a) 1005/20/19 (b) 10/0520/19 (c) 10/05/2019 (d) 100/520/19
36. 36.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
37. 37.📅 The digits 14031955 are a date: day, month, year. Which chunking shows the date? (a) 140/319/55 (b) 1403/19/55 (c) 14/03/1955 (d) 14/0319/55
38. 38.📅 The digits 14012008 are a date: day, month, year. Which chunking shows the date? (a) 14/01/2008 (b) 14/0120/08 (c) 140/120/08 (d) 1401/20/08
39. 39.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
40. 40.📅 The digits 17081957 are a date: day, month, year. Which chunking shows the date? (a) 1708/19/57 (b) 17/08/1957 (c) 170/819/57 (d) 17/0819/57

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