Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 500 · 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.📅 The digits 15041959 are a date: day, month, year. Which chunking shows the date? (a) 15/0419/59 (b) 1504/19/59 (c) 150/419/59 (d) 15/04/1959
2. 2.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) three chunks, not ten (d) it has fewer digits
3. 3.🔢 You want to remember the number 9563572021. Which chunked version keeps every digit in the same order? (a) 956 357 2012 (b) 956 357 2021 (c) 995 635 72021 (d) 956 357 221
4. 4.🔢 You want to remember the number 120316055. Which chunked version keeps every digit in the same order? (a) 120 316 055 (b) 103 160 55 (c) 120 316 0555 (d) 120 136 055
5. 5.📅 The digits 21042011 are a date: day, month, year. Which chunking shows the date? (a) 2104/20/11 (b) 21/0420/11 (c) 210/420/11 (d) 21/04/2011
6. 6.🔢 You want to remember the number 984696092135. Which chunked version keeps every digit in the same order? (a) 9846 9609 2135 (b) 9846 9609 215 (c) 9846 9609 2153 (d) 9846 9960 92135
7. 7.📅 The digits 17032020 are a date: day, month, year. Which chunking shows the date? (a) 1703/20/20 (b) 17/03/2020 (c) 17/0320/20 (d) 170/320/20
8. 8.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) saying it backwards (d) reading very fast
9. 9.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
10. 10.📅 The digits 21032006 are a date: day, month, year. Which chunking shows the date? (a) 210/320/06 (b) 2103/20/06 (c) 21/0320/06 (d) 21/03/2006
11. 11.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) numbers and letter lists (d) only numbers
12. 12.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
13. 13.🔢 You want to remember the number 335532808. Which chunked version keeps every digit in the same order? (a) 335 532 808 (b) 333 553 2808 (c) 335 532 08 (d) 335 352 808
14. 14.🔢 You want to remember the number 509353046. Which chunked version keeps every digit in the same order? (a) 509 353 046 (b) 509 350 46 (c) 509 353 0446 (d) 503 953 046
15. 15.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
16. 16.🔢 You want to remember the number 272526974713. Which chunked version keeps every digit in the same order? (a) 2725 2697 471 (b) 2725 2697 4713 (c) 2725 2697 74713 (d) 2725 6297 4713
17. 17.🔢 You want to remember the number 2564396279. Which chunked version keeps every digit in the same order? (a) 256 439 6279 (b) 256 433 96279 (c) 256 439 279 (d) 256 439 6297
18. 18.🔢 You want to remember the number 8429095684. Which chunked version keeps every digit in the same order? (a) 842 095 684 (b) 844 290 95684 (c) 842 909 6584 (d) 842 909 5684
19. 19.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 19 and 47 (c) 1 and 947 (d) 1 9 4 7
20. 20.📅 The digits 25051951 are a date: day, month, year. Which chunking shows the date? (a) 250/519/51 (b) 25/05/1951 (c) 25/0519/51 (d) 2505/19/51
21. 21.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
22. 22.📅 The digits 24121982 are a date: day, month, year. Which chunking shows the date? (a) 24/12/1982 (b) 24/1219/82 (c) 2412/19/82 (d) 241/219/82
23. 23.🔢 You want to remember the number 870981218. Which chunked version keeps every digit in the same order? (a) 870 982 118 (b) 870 981 218 (c) 877 098 1218 (d) 870 812 18
24. 24.🔢 You want to remember the number 868987879358. Which chunked version keeps every digit in the same order? (a) 8689 8787 9358 (b) 8689 8779 358 (c) 8689 8778 79358 (d) 6889 8787 9358
25. 25.📅 The digits 24042003 are a date: day, month, year. Which chunking shows the date? (a) 240/420/03 (b) 24/04/2003 (c) 2404/20/03 (d) 24/0420/03
26. 26.📅 The digits 21101950 are a date: day, month, year. Which chunking shows the date? (a) 2110/19/50 (b) 21/1019/50 (c) 211/019/50 (d) 21/10/1950
27. 27.🔢 You want to remember the number 617432166. Which chunked version keeps every digit in the same order? (a) 617 433 2166 (b) 617 342 166 (c) 617 432 166 (d) 617 432 66
28. 28.📅 The digits 23011965 are a date: day, month, year. Which chunking shows the date? (a) 2301/19/65 (b) 23/0119/65 (c) 23/01/1965 (d) 230/119/65
29. 29.📅 The digits 26041958 are a date: day, month, year. Which chunking shows the date? (a) 260/419/58 (b) 26/0419/58 (c) 26/04/1958 (d) 2604/19/58
30. 30.📅 The digits 04011975 are a date: day, month, year. Which chunking shows the date? (a) 040/119/75 (b) 04/01/1975 (c) 0401/19/75 (d) 04/0119/75
31. 31.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
32. 32.📅 The digits 21052006 are a date: day, month, year. Which chunking shows the date? (a) 21/0520/06 (b) 210/520/06 (c) 21/05/2006 (d) 2105/20/06
33. 33.🔢 You want to remember the number 555129284. Which chunked version keeps every digit in the same order? (a) 555 129 284 (b) 555 122 984 (c) 555 129 28 (d) 555 512 9284
34. 34.🔢 You want to remember the number 7473571745. Which chunked version keeps every digit in the same order? (a) 747 537 1745 (b) 747 357 1745 (c) 747 357 174 (d) 747 355 71745
35. 35.🔢 A chunk is easiest to keep when it… (a) changes daily (b) is very long (c) means something to you (d) has no pattern
36. 36.🔢 You want to remember the number 551504327. Which chunked version keeps every digit in the same order? (a) 551 504 27 (b) 551 540 327 (c) 551 504 327 (d) 551 500 4327
37. 37.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
38. 38.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
39. 39.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
40. 40.📅 The digits 23011960 are a date: day, month, year. Which chunking shows the date? (a) 230/119/60 (b) 23/01/1960 (c) 23/0119/60 (d) 2301/19/60

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