Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 596 · 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 9-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 You want to remember the number 855927214. Which chunked version keeps every digit in the same order? (a) 859 272 14 (b) 855 922 7214 (c) 855 927 214 (d) 855 297 214
3. 3.📅 The digits 03112022 are a date: day, month, year. Which chunking shows the date? (a) 03/11/2022 (b) 0311/20/22 (c) 031/120/22 (d) 03/1120/22
4. 4.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 1 9 4 7 (c) 194 and 7 (d) 19 and 47
5. 5.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.🔢 You want to remember the number 340078212264. Which chunked version keeps every digit in the same order? (a) 3400 7821 2246 (b) 3400 7821 2264 (c) 3400 7821 226 (d) 3400 7821 22664
7. 7.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
8. 8.🔢 You want to remember the number 633822166. Which chunked version keeps every digit in the same order? (a) 633 822 166 (b) 663 382 2166 (c) 638 221 66 (d) 638 322 166
9. 9.🔢 You want to remember the number 202667401868. Which chunked version keeps every digit in the same order? (a) 2026 7401 868 (b) 2026 6740 1868 (c) 2026 6740 18868 (d) 2026 6740 1688
10. 10.📅 The digits 14091969 are a date: day, month, year. Which chunking shows the date? (a) 1409/19/69 (b) 140/919/69 (c) 14/0919/69 (d) 14/09/1969
11. 11.📅 The digits 04072000 are a date: day, month, year. Which chunking shows the date? (a) 04/07/2000 (b) 040/720/00 (c) 04/0720/00 (d) 0407/20/00
12. 12.📅 The digits 19051991 are a date: day, month, year. Which chunking shows the date? (a) 190/519/91 (b) 19/05/1991 (c) 19/0519/91 (d) 1905/19/91
13. 13.📅 The digits 17032000 are a date: day, month, year. Which chunking shows the date? (a) 170/320/00 (b) 1703/20/00 (c) 17/0320/00 (d) 17/03/2000
14. 14.📅 The digits 01011973 are a date: day, month, year. Which chunking shows the date? (a) 0101/19/73 (b) 01/01/1973 (c) 010/119/73 (d) 01/0119/73
15. 15.🔢 You want to remember the number 7053445436. Which chunked version keeps every digit in the same order? (a) 705 344 54436 (b) 075 344 5436 (c) 705 445 436 (d) 705 344 5436
16. 16.📅 The digits 22021983 are a date: day, month, year. Which chunking shows the date? (a) 22/02/1983 (b) 22/0219/83 (c) 2202/19/83 (d) 220/219/83
17. 17.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
18. 18.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
19. 19.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) means something to you (d) has no pattern
20. 20.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
21. 21.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
22. 22.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
23. 23.📅 The digits 23092002 are a date: day, month, year. Which chunking shows the date? (a) 230/920/02 (b) 23/09/2002 (c) 2309/20/02 (d) 23/0920/02
24. 24.📅 The digits 26111968 are a date: day, month, year. Which chunking shows the date? (a) 26/1119/68 (b) 26/11/1968 (c) 2611/19/68 (d) 261/119/68
25. 25.🔢 You want to remember the number 768581208753. Which chunked version keeps every digit in the same order? (a) 7685 8120 87553 (b) 7685 8120 8753 (c) 7865 8120 8753 (d) 6858 1208 753
26. 26.🔢 You want to remember the number 470167500. Which chunked version keeps every digit in the same order? (a) 470 167 5000 (b) 740 167 500 (c) 470 167 500 (d) 470 175 00
27. 27.📅 The digits 12031991 are a date: day, month, year. Which chunking shows the date? (a) 1203/19/91 (b) 120/319/91 (c) 12/03/1991 (d) 12/0319/91
28. 28.🔢 You want to remember the number 516009334. Which chunked version keeps every digit in the same order? (a) 516 090 334 (b) 516 009 334 (c) 516 009 3334 (d) 560 093 34
29. 29.🔢 You want to remember the number 222189643348. Which chunked version keeps every digit in the same order? (a) 2221 8694 3348 (b) 2222 1896 43348 (c) 2221 9643 348 (d) 2221 8964 3348
30. 30.🔢 You want to remember the number 1359564773. Which chunked version keeps every digit in the same order? (a) 135 956 4773 (b) 135 956 7473 (c) 135 956 44773 (d) 135 956 473
31. 31.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
32. 32.🔢 You want to remember the number 8727430271. Which chunked version keeps every digit in the same order? (a) 872 743 0271 (b) 877 274 30271 (c) 872 740 271 (d) 872 740 3271
33. 33.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
34. 34.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) splitting into groups (d) saying it backwards
35. 35.📅 The digits 03041993 are a date: day, month, year. Which chunking shows the date? (a) 03/04/1993 (b) 03/0419/93 (c) 0304/19/93 (d) 030/419/93
36. 36.🔢 You want to remember the number 5182240327. Which chunked version keeps every digit in the same order? (a) 518 224 0327 (b) 518 224 3027 (c) 582 240 327 (d) 518 822 40327
37. 37.🔢 You want to remember the number 426785851470. Which chunked version keeps every digit in the same order? (a) 4267 8558 1470 (b) 4278 5851 470 (c) 4426 7858 51470 (d) 4267 8585 1470
38. 38.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
39. 39.📅 The digits 13122019 are a date: day, month, year. Which chunking shows the date? (a) 13/12/2019 (b) 131/220/19 (c) 1312/20/19 (d) 13/1220/19
40. 40.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?

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