Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 380 · 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.🔢 You want to remember the number 831230741929. Which chunked version keeps every digit in the same order? (a) 8312 3074 9129 (b) 8312 3074 1929 (c) 8831 2307 41929 (d) 8312 3074 199
2. 2.🔢 You want to remember the number 597662440. Which chunked version keeps every digit in the same order? (a) 597 662 440 (b) 597 666 2440 (c) 597 664 240 (d) 597 624 40
3. 3.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
4. 4.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
5. 5.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) only pictures (d) nothing at all
6. 6.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
7. 7.🔢 You want to remember the number 107992751489. Which chunked version keeps every digit in the same order? (a) 1079 9275 1489 (b) 1079 9275 4189 (c) 1079 9251 489 (d) 1007 9927 51489
8. 8.🔢 You want to remember the number 285078313. Which chunked version keeps every digit in the same order? (a) 285 073 13 (b) 285 078 313 (c) 280 578 313 (d) 285 007 8313
9. 9.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) three chunks, not ten (d) it is a smaller number
10. 10.📅 The digits 15101981 are a date: day, month, year. Which chunking shows the date? (a) 151/019/81 (b) 15/10/1981 (c) 15/1019/81 (d) 1510/19/81
11. 11.📅 The digits 04072000 are a date: day, month, year. Which chunking shows the date? (a) 04/07/2000 (b) 0407/20/00 (c) 040/720/00 (d) 04/0720/00
12. 12.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
13. 13.📅 The digits 19092013 are a date: day, month, year. Which chunking shows the date? (a) 19/09/2013 (b) 1909/20/13 (c) 190/920/13 (d) 19/0920/13
14. 14.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
15. 15.🔢 You want to remember the number 1232146564. Which chunked version keeps every digit in the same order? (a) 123 214 6564 (b) 213 214 6564 (c) 123 214 46564 (d) 123 214 664
16. 16.📅 The digits 03061970 are a date: day, month, year. Which chunking shows the date? (a) 030/619/70 (b) 03/0619/70 (c) 0306/19/70 (d) 03/06/1970
17. 17.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
18. 18.🔢 You want to remember the number 211042108368. Which chunked version keeps every digit in the same order? (a) 2110 4210 8368 (b) 2110 4210 8638 (c) 1104 2108 368 (d) 2111 0421 08368
19. 19.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
20. 20.🔢 You want to remember the number 985469523131. Which chunked version keeps every digit in the same order? (a) 9854 6952 313 (b) 9854 6952 3131 (c) 9854 6952 31311 (d) 9854 6953 2131
21. 21.🔢 You want to remember the number 4108508629. Which chunked version keeps every digit in the same order? (a) 410 850 8692 (b) 410 850 8629 (c) 410 850 86229 (d) 410 850 862
22. 22.🔢 You want to remember the number 2419909972. Which chunked version keeps every digit in the same order? (a) 241 999 972 (b) 421 990 9972 (c) 241 999 09972 (d) 241 990 9972
23. 23.🔢 You want to remember the number 721162664659. Which chunked version keeps every digit in the same order? (a) 7211 6626 4659 (b) 7211 6664 659 (c) 7211 6266 4659 (d) 7211 6226 64659
24. 24.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
25. 25.🔢 You want to remember the number 780242871290. Which chunked version keeps every digit in the same order? (a) 7804 2287 1290 (b) 7802 4287 1290 (c) 7802 4287 12990 (d) 7024 2871 290
26. 26.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
27. 27.🔢 You want to remember the number 261329904961. Which chunked version keeps every digit in the same order? (a) 2613 2990 4961 (b) 2632 9904 961 (c) 2613 2990 49961 (d) 2163 2990 4961
28. 28.🔢 You want to remember the number 345514450819. Which chunked version keeps every digit in the same order? (a) 4551 4450 819 (b) 3455 1445 0819 (c) 3455 1144 50819 (d) 3455 4145 0819
29. 29.🔢 You want to remember the number 574426980. Which chunked version keeps every digit in the same order? (a) 577 442 6980 (b) 574 246 980 (c) 574 426 980 (d) 574 469 80
30. 30.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
31. 31.📅 The digits 20091980 are a date: day, month, year. Which chunking shows the date? (a) 20/0919/80 (b) 2009/19/80 (c) 20/09/1980 (d) 200/919/80
32. 32.🔢 You want to remember the number 163951394. Which chunked version keeps every digit in the same order? (a) 163 951 34 (b) 163 951 394 (c) 163 995 1394 (d) 163 915 394
33. 33.📅 The digits 13041972 are a date: day, month, year. Which chunking shows the date? (a) 13/0419/72 (b) 130/419/72 (c) 13/04/1972 (d) 1304/19/72
34. 34.📅 The digits 17111966 are a date: day, month, year. Which chunking shows the date? (a) 17/1119/66 (b) 1711/19/66 (c) 17/11/1966 (d) 171/119/66
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.🔢 You want to remember the number 6883533482. Which chunked version keeps every digit in the same order? (a) 688 353 382 (b) 688 533 3482 (c) 688 353 34482 (d) 688 353 3482
37. 37.🔢 You want to remember the number 344427028. Which chunked version keeps every digit in the same order? (a) 344 472 028 (b) 344 427 28 (c) 334 442 7028 (d) 344 427 028
38. 38.🔢 You want to remember the number 728766357. Which chunked version keeps every digit in the same order? (a) 728 766 357 (b) 728 766 537 (c) 728 766 35 (d) 728 766 3577
39. 39.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 19 and 47 (d) 1 9 4 7
40. 40.📅 The digits 20041964 are a date: day, month, year. Which chunking shows the date? (a) 20/04/1964 (b) 200/419/64 (c) 2004/19/64 (d) 20/0419/64

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