Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 829 · 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.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it has fewer digits (c) it is a smaller number (d) it is printed bigger
2. 2.📅 The digits 03032019 are a date: day, month, year. Which chunking shows the date? (a) 030/320/19 (b) 0303/20/19 (c) 03/0320/19 (d) 03/03/2019
3. 3.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) numbers and letter lists (d) only pictures
4. 4.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 You want to remember the number 545094381428. Which chunked version keeps every digit in the same order? (a) 5459 0438 1428 (b) 5450 9431 428 (c) 5450 9438 14228 (d) 5450 9438 1428
6. 6.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
7. 7.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
8. 8.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
9. 9.📅 The digits 22091971 are a date: day, month, year. Which chunking shows the date? (a) 22/0919/71 (b) 220/919/71 (c) 2209/19/71 (d) 22/09/1971
10. 10.🔢 You want to remember the number 318681706. Which chunked version keeps every digit in the same order? (a) 318 681 7006 (b) 318 617 06 (c) 318 681 706 (d) 318 861 706
11. 11.📅 The digits 10051981 are a date: day, month, year. Which chunking shows the date? (a) 1005/19/81 (b) 10/05/1981 (c) 10/0519/81 (d) 100/519/81
12. 12.📅 The digits 25061975 are a date: day, month, year. Which chunking shows the date? (a) 25/06/1975 (b) 2506/19/75 (c) 250/619/75 (d) 25/0619/75
13. 13.📅 The digits 28011969 are a date: day, month, year. Which chunking shows the date? (a) 28/01/1969 (b) 2801/19/69 (c) 28/0119/69 (d) 280/119/69
14. 14.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
15. 15.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) saying it backwards (d) writing it twice
16. 16.🔢 You want to remember the number 5226705137. Which chunked version keeps every digit in the same order? (a) 526 705 137 (b) 522 670 5137 (c) 552 267 05137 (d) 522 607 5137
17. 17.🔢 You want to remember the number 2477385710. Which chunked version keeps every digit in the same order? (a) 247 738 57100 (b) 247 738 710 (c) 274 738 5710 (d) 247 738 5710
18. 18.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
19. 19.🔢 You want to remember the number 312682657. Which chunked version keeps every digit in the same order? (a) 312 688 2657 (b) 312 682 567 (c) 312 682 657 (d) 326 826 57
20. 20.📅 The digits 27021968 are a date: day, month, year. Which chunking shows the date? (a) 270/219/68 (b) 2702/19/68 (c) 27/02/1968 (d) 27/0219/68
21. 21.📅 The digits 10051991 are a date: day, month, year. Which chunking shows the date? (a) 1005/19/91 (b) 100/519/91 (c) 10/0519/91 (d) 10/05/1991
22. 22.📅 The digits 01051964 are a date: day, month, year. Which chunking shows the date? (a) 01/0519/64 (b) 01/05/1964 (c) 010/519/64 (d) 0105/19/64
23. 23.🔢 You want to remember the number 983017909. Which chunked version keeps every digit in the same order? (a) 983 017 990 (b) 983 179 09 (c) 983 301 7909 (d) 983 017 909
24. 24.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
25. 25.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 19 and 47 (d) 1 9 4 7
26. 26.🔢 You want to remember the number 304808200620. Which chunked version keeps every digit in the same order? (a) 3048 0820 06200 (b) 3048 0820 0620 (c) 0480 8200 620 (d) 0348 0820 0620
27. 27.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) changes daily (c) means something to you (d) is very long
28. 28.🔢 You want to remember the number 6174818942. Which chunked version keeps every digit in the same order? (a) 617 481 8942 (b) 614 818 942 (c) 611 748 18942 (d) 617 481 9842
29. 29.📅 The digits 04072018 are a date: day, month, year. Which chunking shows the date? (a) 040/720/18 (b) 0407/20/18 (c) 04/0720/18 (d) 04/07/2018
30. 30.📅 The digits 26112009 are a date: day, month, year. Which chunking shows the date? (a) 2611/20/09 (b) 26/11/2009 (c) 261/120/09 (d) 26/1120/09
31. 31.📅 The digits 21072019 are a date: day, month, year. Which chunking shows the date? (a) 210/720/19 (b) 2107/20/19 (c) 21/0720/19 (d) 21/07/2019
32. 32.📅 The digits 24041968 are a date: day, month, year. Which chunking shows the date? (a) 24/0419/68 (b) 2404/19/68 (c) 24/04/1968 (d) 240/419/68
33. 33.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
34. 34.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
35. 35.📅 The digits 06111984 are a date: day, month, year. Which chunking shows the date? (a) 0611/19/84 (b) 06/11/1984 (c) 061/119/84 (d) 06/1119/84
36. 36.🔢 You want to remember the number 830052455004. Which chunked version keeps every digit in the same order? (a) 8330 0524 55004 (b) 8300 5245 504 (c) 8300 5245 0504 (d) 8300 5245 5004
37. 37.🔢 You want to remember the number 912750816655. Which chunked version keeps every digit in the same order? (a) 9217 5081 6655 (b) 9127 5081 6655 (c) 9912 7508 16655 (d) 9127 5081 665
38. 38.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
39. 39.📅 The digits 04091950 are a date: day, month, year. Which chunking shows the date? (a) 04/09/1950 (b) 040/919/50 (c) 0409/19/50 (d) 04/0919/50
40. 40.🔢 You want to remember the number 349535280540. Which chunked version keeps every digit in the same order? (a) 3493 5528 0540 (b) 3495 3528 0540 (c) 3495 3528 05400 (d) 3493 5280 540

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