Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 429 · 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 2025697020. Which chunked version keeps every digit in the same order? (a) 202 569 7002 (b) 202 569 7020 (c) 202 569 70220 (d) 202 567 020
2. 2.📅 The digits 28021989 are a date: day, month, year. Which chunking shows the date? (a) 280/219/89 (b) 28/0219/89 (c) 2802/19/89 (d) 28/02/1989
3. 3.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
4. 4.🔢 You want to remember the number 594394560249. Which chunked version keeps every digit in the same order? (a) 5943 9456 0249 (b) 5943 9456 024 (c) 5943 9456 02499 (d) 9543 9456 0249
5. 5.🔢 You want to remember the number 171512327942. Which chunked version keeps every digit in the same order? (a) 1715 1232 7942 (b) 1715 1227 942 (c) 1711 5123 27942 (d) 1711 5232 7942
6. 6.📅 The digits 09112025 are a date: day, month, year. Which chunking shows the date? (a) 0911/20/25 (b) 091/120/25 (c) 09/1120/25 (d) 09/11/2025
7. 7.🔢 You want to remember the number 5750608078. Which chunked version keeps every digit in the same order? (a) 575 060 88078 (b) 575 060 807 (c) 570 560 8078 (d) 575 060 8078
8. 8.📅 The digits 28121960 are a date: day, month, year. Which chunking shows the date? (a) 2812/19/60 (b) 28/1219/60 (c) 281/219/60 (d) 28/12/1960
9. 9.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) only pictures (d) numbers and letter lists
10. 10.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it has fewer digits (c) it is printed bigger (d) it is a smaller number
11. 11.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
12. 12.🔢 You want to remember the number 573873060712. Which chunked version keeps every digit in the same order? (a) 5573 8730 60712 (b) 5737 3060 712 (c) 5738 7036 0712 (d) 5738 7306 0712
13. 13.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) has no pattern (d) is very long
14. 14.📅 The digits 02061950 are a date: day, month, year. Which chunking shows the date? (a) 020/619/50 (b) 0206/19/50 (c) 02/0619/50 (d) 02/06/1950
15. 15.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
16. 16.📅 The digits 24012009 are a date: day, month, year. Which chunking shows the date? (a) 240/120/09 (b) 24/0120/09 (c) 2401/20/09 (d) 24/01/2009
17. 17.🔢 You want to remember the number 603053096. Which chunked version keeps every digit in the same order? (a) 603 053 096 (b) 600 305 3096 (c) 603 030 96 (d) 603 050 396
18. 18.🔢 You want to remember the number 378425801. Which chunked version keeps every digit in the same order? (a) 378 425 801 (b) 784 258 01 (c) 378 842 5801 (d) 378 425 081
19. 19.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
20. 20.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
21. 21.🔢 You want to remember the number 9446361820. Which chunked version keeps every digit in the same order? (a) 944 463 61820 (b) 944 661 820 (c) 944 366 1820 (d) 944 636 1820
22. 22.🔢 You want to remember the number 337379205197. Which chunked version keeps every digit in the same order? (a) 3373 7920 5197 (b) 3373 7920 5917 (c) 3737 9205 197 (d) 3337 3792 05197
23. 23.📅 The digits 15081968 are a date: day, month, year. Which chunking shows the date? (a) 15/0819/68 (b) 15/08/1968 (c) 1508/19/68 (d) 150/819/68
24. 24.📅 The digits 20102022 are a date: day, month, year. Which chunking shows the date? (a) 2010/20/22 (b) 20/10/2022 (c) 201/020/22 (d) 20/1020/22
25. 25.🔢 You want to remember the number 1797718785. Which chunked version keeps every digit in the same order? (a) 179 771 87785 (b) 179 718 785 (c) 177 971 8785 (d) 179 771 8785
26. 26.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
27. 27.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
28. 28.🔢 Instead of holding 11 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 202386197602. Which chunked version keeps every digit in the same order? (a) 2023 8619 76022 (b) 2023 8619 7602 (c) 2023 6819 7602 (d) 0238 6197 602
30. 30.🔢 You want to remember the number 7189704345. Which chunked version keeps every digit in the same order? (a) 718 897 04345 (b) 718 970 434 (c) 718 970 4345 (d) 718 790 4345
31. 31.📅 The digits 19091984 are a date: day, month, year. Which chunking shows the date? (a) 19/09/1984 (b) 19/0919/84 (c) 190/919/84 (d) 1909/19/84
32. 32.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
33. 33.🔢 You want to remember the number 806310251. Which chunked version keeps every digit in the same order? (a) 806 310 2511 (b) 806 310 251 (c) 806 102 51 (d) 086 310 251
34. 34.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 and 947 (d) 1 9 4 7
35. 35.🔢 You want to remember the number 965772716. Which chunked version keeps every digit in the same order? (a) 965 727 16 (b) 965 727 716 (c) 966 577 2716 (d) 965 772 716
36. 36.📅 The digits 26021996 are a date: day, month, year. Which chunking shows the date? (a) 26/02/1996 (b) 26/0219/96 (c) 2602/19/96 (d) 260/219/96
37. 37.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
38. 38.📅 The digits 14051992 are a date: day, month, year. Which chunking shows the date? (a) 14/05/1992 (b) 140/519/92 (c) 14/0519/92 (d) 1405/19/92
39. 39.🔢 You want to remember the number 641268632. Which chunked version keeps every digit in the same order? (a) 641 268 362 (b) 412 686 32 (c) 641 226 8632 (d) 641 268 632
40. 40.🔢 You want to remember the number 2072547736. Which chunked version keeps every digit in the same order? (a) 207 524 7736 (b) 207 254 7736 (c) 220 725 47736 (d) 207 254 736

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