Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 87 · 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 chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) changes daily (d) means something to you
2. 2.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
3. 3.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
4. 4.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) it is a smaller number (d) three chunks, not ten
6. 6.🔢 You want to remember the number 5306410419. Which chunked version keeps every digit in the same order? (a) 530 641 04419 (b) 530 641 419 (c) 536 041 0419 (d) 530 641 0419
7. 7.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
8. 8.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) reading very fast (d) splitting into groups
9. 9.🔢 You want to remember the number 539804020147. Which chunked version keeps every digit in the same order? (a) 5398 0400 20147 (b) 5938 0402 0147 (c) 5390 4020 147 (d) 5398 0402 0147
10. 10.🔢 You want to remember the number 467184603995. Which chunked version keeps every digit in the same order? (a) 4671 8460 39995 (b) 4671 8640 3995 (c) 4671 8460 3995 (d) 4671 8463 995
11. 11.📅 The digits 27111998 are a date: day, month, year. Which chunking shows the date? (a) 27/11/1998 (b) 271/119/98 (c) 27/1119/98 (d) 2711/19/98
12. 12.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
13. 13.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
14. 14.🔢 You want to remember the number 322934486. Which chunked version keeps every digit in the same order? (a) 232 934 486 (b) 322 934 4866 (c) 229 344 86 (d) 322 934 486
15. 15.📅 The digits 07112018 are a date: day, month, year. Which chunking shows the date? (a) 0711/20/18 (b) 07/11/2018 (c) 07/1120/18 (d) 071/120/18
16. 16.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
17. 17.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
18. 18.🔢 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
19. 19.🔢 You want to remember the number 901003123010. Which chunked version keeps every digit in the same order? (a) 9010 3012 3010 (b) 9010 0312 3010 (c) 9010 0312 310 (d) 9010 0312 33010
20. 20.📅 The digits 16071977 are a date: day, month, year. Which chunking shows the date? (a) 1607/19/77 (b) 16/0719/77 (c) 160/719/77 (d) 16/07/1977
21. 21.🔢 You want to remember the number 930103366. Which chunked version keeps every digit in the same order? (a) 930 033 66 (b) 390 103 366 (c) 930 100 3366 (d) 930 103 366
22. 22.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
23. 23.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
24. 24.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
25. 25.🔢 You want to remember the number 5432681453. Which chunked version keeps every digit in the same order? (a) 543 268 81453 (b) 543 268 1543 (c) 543 681 453 (d) 543 268 1453
26. 26.🔢 You want to remember the number 101563560658. Which chunked version keeps every digit in the same order? (a) 1015 6365 0658 (b) 1015 6356 0658 (c) 1056 3560 658 (d) 1015 6356 00658
27. 27.📅 The digits 03022005 are a date: day, month, year. Which chunking shows the date? (a) 03/02/2005 (b) 030/220/05 (c) 03/0220/05 (d) 0302/20/05
28. 28.🔢 You want to remember the number 148224924016. Which chunked version keeps every digit in the same order? (a) 1482 2492 4106 (b) 1448 2249 24016 (c) 1482 2492 4016 (d) 1482 2494 016
29. 29.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
30. 30.📅 The digits 06041981 are a date: day, month, year. Which chunking shows the date? (a) 060/419/81 (b) 0604/19/81 (c) 06/0419/81 (d) 06/04/1981
31. 31.📅 The digits 08031983 are a date: day, month, year. Which chunking shows the date? (a) 080/319/83 (b) 08/03/1983 (c) 08/0319/83 (d) 0803/19/83
32. 32.🔢 You want to remember the number 851224931. Which chunked version keeps every digit in the same order? (a) 852 124 931 (b) 851 222 4931 (c) 851 224 93 (d) 851 224 931
33. 33.📅 The digits 19022025 are a date: day, month, year. Which chunking shows the date? (a) 19/0220/25 (b) 19/02/2025 (c) 1902/20/25 (d) 190/220/25
34. 34.🔢 You want to remember the number 235248140980. Which chunked version keeps every digit in the same order? (a) 2354 2814 0980 (b) 2352 4814 0980 (c) 2352 4814 980 (d) 2352 4814 09800
35. 35.🔢 You want to remember the number 985909001. Which chunked version keeps every digit in the same order? (a) 985 990 001 (b) 998 590 9001 (c) 985 909 001 (d) 989 090 01
36. 36.🔢 You want to remember the number 372048228246. Which chunked version keeps every digit in the same order? (a) 7204 8228 246 (b) 3702 4822 8246 (c) 3720 4822 8246 (d) 3372 0482 28246
37. 37.🔢 You want to remember the number 134796684348. Which chunked version keeps every digit in the same order? (a) 3147 9668 4348 (b) 1347 9668 434 (c) 1347 9668 43348 (d) 1347 9668 4348
38. 38.🔢 You want to remember the number 791471271. Which chunked version keeps every digit in the same order? (a) 791 712 71 (b) 791 741 271 (c) 791 471 2711 (d) 791 471 271
39. 39.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
40. 40.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?

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