Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 322 · 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.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 1 and 947 (d) 19 and 47
2. 2.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it has fewer digits (c) three chunks, not ten (d) it is a smaller number
4. 4.📅 The digits 08102002 are a date: day, month, year. Which chunking shows the date? (a) 08/1020/02 (b) 08/10/2002 (c) 0810/20/02 (d) 081/020/02
5. 5.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.📅 The digits 24081964 are a date: day, month, year. Which chunking shows the date? (a) 240/819/64 (b) 24/08/1964 (c) 24/0819/64 (d) 2408/19/64
7. 7.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
8. 8.🔢 You want to remember the number 497014003. Which chunked version keeps every digit in the same order? (a) 497 104 003 (b) 497 014 003 (c) 497 014 03 (d) 497 014 0003
9. 9.🔢 You want to remember the number 384970116. Which chunked version keeps every digit in the same order? (a) 384 977 0116 (b) 389 470 116 (c) 384 970 116 (d) 384 701 16
10. 10.📅 The digits 24022011 are a date: day, month, year. Which chunking shows the date? (a) 240/220/11 (b) 2402/20/11 (c) 24/0220/11 (d) 24/02/2011
11. 11.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
12. 12.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
13. 13.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
14. 14.🔢 A chunk is easiest to keep when it… (a) means something to you (b) is very long (c) has no pattern (d) changes daily
15. 15.📅 The digits 02092023 are a date: day, month, year. Which chunking shows the date? (a) 02/0920/23 (b) 020/920/23 (c) 02/09/2023 (d) 0209/20/23
16. 16.📅 The digits 10042015 are a date: day, month, year. Which chunking shows the date? (a) 10/0420/15 (b) 100/420/15 (c) 1004/20/15 (d) 10/04/2015
17. 17.🔢 You want to remember the number 825206663790. Which chunked version keeps every digit in the same order? (a) 8252 0666 63790 (b) 8252 6663 790 (c) 8252 0663 6790 (d) 8252 0666 3790
18. 18.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
19. 19.🔢 You want to remember the number 514083616. Which chunked version keeps every digit in the same order? (a) 514 086 316 (b) 514 086 16 (c) 514 083 616 (d) 551 408 3616
20. 20.🔢 You want to remember the number 222292293. Which chunked version keeps every digit in the same order? (a) 222 299 2293 (b) 222 292 293 (c) 222 922 93 (d) 222 922 293
21. 21.🔢 You want to remember the number 7708295469. Which chunked version keeps every digit in the same order? (a) 707 829 5469 (b) 777 082 95469 (c) 770 829 5469 (d) 708 295 469
22. 22.🔢 You want to remember the number 419603703. Which chunked version keeps every digit in the same order? (a) 419 603 03 (b) 416 903 703 (c) 411 960 3703 (d) 419 603 703
23. 23.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
24. 24.🔢 You want to remember the number 812884138. Which chunked version keeps every digit in the same order? (a) 812 884 138 (b) 812 884 183 (c) 812 888 4138 (d) 818 841 38
25. 25.🔢 You want to remember the number 410966495. Which chunked version keeps every digit in the same order? (a) 410 964 695 (b) 411 096 6495 (c) 410 966 495 (d) 410 966 45
26. 26.🔢 You want to remember the number 5004007702. Which chunked version keeps every digit in the same order? (a) 004 007 702 (b) 500 400 07702 (c) 050 400 7702 (d) 500 400 7702
27. 27.🔢 You want to remember the number 5755379425. Which chunked version keeps every digit in the same order? (a) 575 379 425 (b) 575 537 4925 (c) 575 533 79425 (d) 575 537 9425
28. 28.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) numbers and letter lists (d) only pictures
29. 29.📅 The digits 14041968 are a date: day, month, year. Which chunking shows the date? (a) 14/04/1968 (b) 140/419/68 (c) 1404/19/68 (d) 14/0419/68
30. 30.🔢 You want to remember the number 847294110. Which chunked version keeps every digit in the same order? (a) 847 924 110 (b) 847 294 110 (c) 847 729 4110 (d) 847 291 10
31. 31.📅 The digits 10011989 are a date: day, month, year. Which chunking shows the date? (a) 1001/19/89 (b) 10/01/1989 (c) 100/119/89 (d) 10/0119/89
32. 32.🔢 You want to remember the number 912004534008. Which chunked version keeps every digit in the same order? (a) 9100 4534 008 (b) 9210 0453 4008 (c) 9120 0453 44008 (d) 9120 0453 4008
33. 33.🔢 You want to remember the number 713229234. Which chunked version keeps every digit in the same order? (a) 713 322 9234 (b) 713 229 34 (c) 713 292 234 (d) 713 229 234
34. 34.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
35. 35.📅 The digits 25011999 are a date: day, month, year. Which chunking shows the date? (a) 250/119/99 (b) 25/01/1999 (c) 25/0119/99 (d) 2501/19/99
36. 36.🔢 You want to remember the number 118791195. Which chunked version keeps every digit in the same order? (a) 181 791 195 (b) 118 791 195 (c) 118 911 95 (d) 118 791 1195
37. 37.🔢 You want to remember the number 543573893211. Which chunked version keeps every digit in the same order? (a) 5433 5738 93211 (b) 5435 7389 321 (c) 5435 7839 3211 (d) 5435 7389 3211
38. 38.📅 The digits 07052001 are a date: day, month, year. Which chunking shows the date? (a) 070/520/01 (b) 07/05/2001 (c) 0705/20/01 (d) 07/0520/01
39. 39.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
40. 40.📅 The digits 20092014 are a date: day, month, year. Which chunking shows the date? (a) 20/09/2014 (b) 20/0920/14 (c) 200/920/14 (d) 2009/20/14

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