Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 91 · 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 621896386. Which chunked version keeps every digit in the same order? (a) 621 896 3386 (b) 621 896 386 (c) 261 896 386 (d) 621 896 36
2. 2.📅 The digits 24061998 are a date: day, month, year. Which chunking shows the date? (a) 24/06/1998 (b) 2406/19/98 (c) 240/619/98 (d) 24/0619/98
3. 3.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
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.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
6. 6.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
7. 7.📅 The digits 20081991 are a date: day, month, year. Which chunking shows the date? (a) 20/0819/91 (b) 200/819/91 (c) 20/08/1991 (d) 2008/19/91
8. 8.📅 The digits 18042011 are a date: day, month, year. Which chunking shows the date? (a) 1804/20/11 (b) 18/0420/11 (c) 18/04/2011 (d) 180/420/11
9. 9.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
10. 10.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) saying it backwards (d) reading very fast
11. 11.📅 The digits 08081994 are a date: day, month, year. Which chunking shows the date? (a) 08/08/1994 (b) 080/819/94 (c) 08/0819/94 (d) 0808/19/94
12. 12.📅 The digits 08091990 are a date: day, month, year. Which chunking shows the date? (a) 08/09/1990 (b) 0809/19/90 (c) 080/919/90 (d) 08/0919/90
13. 13.📅 The digits 11042005 are a date: day, month, year. Which chunking shows the date? (a) 11/04/2005 (b) 11/0420/05 (c) 110/420/05 (d) 1104/20/05
14. 14.📅 The digits 10072005 are a date: day, month, year. Which chunking shows the date? (a) 1007/20/05 (b) 100/720/05 (c) 10/07/2005 (d) 10/0720/05
15. 15.📅 The digits 06101984 are a date: day, month, year. Which chunking shows the date? (a) 061/019/84 (b) 0610/19/84 (c) 06/10/1984 (d) 06/1019/84
16. 16.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) only pictures (d) numbers and letter lists
17. 17.📅 The digits 19122009 are a date: day, month, year. Which chunking shows the date? (a) 19/1220/09 (b) 191/220/09 (c) 19/12/2009 (d) 1912/20/09
18. 18.🔢 You want to remember the number 6292966456. Which chunked version keeps every digit in the same order? (a) 629 229 66456 (b) 622 966 456 (c) 629 296 6456 (d) 629 296 4656
19. 19.📅 The digits 06071971 are a date: day, month, year. Which chunking shows the date? (a) 0607/19/71 (b) 060/719/71 (c) 06/07/1971 (d) 06/0719/71
20. 20.📅 The digits 09051958 are a date: day, month, year. Which chunking shows the date? (a) 0905/19/58 (b) 090/519/58 (c) 09/05/1958 (d) 09/0519/58
21. 21.🔢 You want to remember the number 8577975563. Which chunked version keeps every digit in the same order? (a) 855 779 75563 (b) 875 797 5563 (c) 857 795 563 (d) 857 797 5563
22. 22.🔢 You want to remember the number 125413887424. Which chunked version keeps every digit in the same order? (a) 1251 4388 7424 (b) 1254 1388 7424 (c) 1254 1388 74224 (d) 1541 3887 424
23. 23.🔢 You want to remember the number 497622111802. Which chunked version keeps every digit in the same order? (a) 4977 6221 11802 (b) 9762 2111 802 (c) 4976 2121 1802 (d) 4976 2211 1802
24. 24.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) is very long (d) has no pattern
25. 25.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
26. 26.📅 The digits 25072009 are a date: day, month, year. Which chunking shows the date? (a) 250/720/09 (b) 25/07/2009 (c) 2507/20/09 (d) 25/0720/09
27. 27.🔢 You want to remember the number 611204753061. Which chunked version keeps every digit in the same order? (a) 6112 0477 53061 (b) 6112 0745 3061 (c) 6112 0753 061 (d) 6112 0475 3061
28. 28.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
29. 29.🔢 You want to remember the number 461239509. Which chunked version keeps every digit in the same order? (a) 461 223 9509 (b) 461 235 909 (c) 461 239 509 (d) 462 395 09
30. 30.🔢 You want to remember the number 143034093. Which chunked version keeps every digit in the same order? (a) 143 034 093 (b) 144 303 4093 (c) 143 040 93 (d) 143 304 093
31. 31.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
32. 32.📅 The digits 16012017 are a date: day, month, year. Which chunking shows the date? (a) 1601/20/17 (b) 160/120/17 (c) 16/01/2017 (d) 16/0120/17
33. 33.📅 The digits 22072025 are a date: day, month, year. Which chunking shows the date? (a) 22/0720/25 (b) 22/07/2025 (c) 2207/20/25 (d) 220/720/25
34. 34.🔢 You want to remember the number 7871011641. Which chunked version keeps every digit in the same order? (a) 787 101 16641 (b) 787 101 1614 (c) 787 101 1641 (d) 871 011 641
35. 35.📅 The digits 04101977 are a date: day, month, year. Which chunking shows the date? (a) 0410/19/77 (b) 04/10/1977 (c) 04/1019/77 (d) 041/019/77
36. 36.🔢 You want to remember the number 961503162263. Which chunked version keeps every digit in the same order? (a) 9615 0316 263 (b) 9615 0316 2263 (c) 9615 0331 62263 (d) 6915 0316 2263
37. 37.🔢 You want to remember the number 5582555323. Which chunked version keeps every digit in the same order? (a) 558 255 5323 (b) 558 255 55323 (c) 558 255 532 (d) 552 855 5323
38. 38.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
39. 39.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
40. 40.🔢 You want to remember the number 4217169102. Which chunked version keeps every digit in the same order? (a) 421 711 69102 (b) 421 716 9102 (c) 412 716 9102 (d) 217 169 102

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