Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 427 · 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 19121969 are a date: day, month, year. Which chunking shows the date? (a) 19/12/1969 (b) 1912/19/69 (c) 191/219/69 (d) 19/1219/69
2. 2.🔢 You want to remember the number 873037213. Which chunked version keeps every digit in the same order? (a) 887 303 7213 (b) 830 372 13 (c) 837 037 213 (d) 873 037 213
3. 3.🔢 You want to remember the number 178737359860. Which chunked version keeps every digit in the same order? (a) 1787 7373 59860 (b) 1787 3735 9680 (c) 1787 3735 9860 (d) 1773 7359 860
4. 4.🔢 You want to remember the number 1491854961. Which chunked version keeps every digit in the same order? (a) 149 185 4691 (b) 149 185 54961 (c) 149 185 4961 (d) 149 184 961
5. 5.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
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 220910513981. Which chunked version keeps every digit in the same order? (a) 2209 1051 9381 (b) 2209 1051 381 (c) 2209 1051 3981 (d) 2209 1051 39811
8. 8.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
9. 9.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
10. 10.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) three chunks, not ten (c) it has fewer digits (d) it is printed bigger
11. 11.🔢 You want to remember the number 136860392116. Which chunked version keeps every digit in the same order? (a) 1366 8039 2116 (b) 1368 6039 21166 (c) 1386 0392 116 (d) 1368 6039 2116
12. 12.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only pictures (d) only numbers
13. 13.🔢 You want to remember the number 217311062530. Which chunked version keeps every digit in the same order? (a) 2173 1106 2350 (b) 2173 1106 25530 (c) 2173 1106 2530 (d) 2173 1106 250
14. 14.📅 The digits 25041982 are a date: day, month, year. Which chunking shows the date? (a) 250/419/82 (b) 25/0419/82 (c) 25/04/1982 (d) 2504/19/82
15. 15.🔢 You want to remember the number 6574493013. Which chunked version keeps every digit in the same order? (a) 655 744 93013 (b) 657 449 301 (c) 657 449 3013 (d) 657 449 3031
16. 16.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
17. 17.🔢 You want to remember the number 486622441. Which chunked version keeps every digit in the same order? (a) 486 622 2441 (b) 486 622 41 (c) 486 624 241 (d) 486 622 441
18. 18.📅 The digits 09051969 are a date: day, month, year. Which chunking shows the date? (a) 09/0519/69 (b) 09/05/1969 (c) 090/519/69 (d) 0905/19/69
19. 19.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
20. 20.🔢 You want to remember the number 836784227812. Which chunked version keeps every digit in the same order? (a) 8367 8422 78122 (b) 8367 8422 7812 (c) 8678 4227 812 (d) 8367 4822 7812
21. 21.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
22. 22.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) has no pattern (d) changes daily
23. 23.🔢 You want to remember the number 431408753217. Which chunked version keeps every digit in the same order? (a) 4314 0875 3271 (b) 4314 0875 32177 (c) 4314 0875 3217 (d) 3140 8753 217
24. 24.📅 The digits 04092025 are a date: day, month, year. Which chunking shows the date? (a) 04/09/2025 (b) 04/0920/25 (c) 040/920/25 (d) 0409/20/25
25. 25.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) splitting into groups (d) writing it twice
26. 26.🔢 You want to remember the number 5360121634. Which chunked version keeps every digit in the same order? (a) 360 121 634 (b) 536 012 16634 (c) 563 012 1634 (d) 536 012 1634
27. 27.🔢 You want to remember the number 716211964. Which chunked version keeps every digit in the same order? (a) 716 211 946 (b) 711 621 1964 (c) 762 119 64 (d) 716 211 964
28. 28.📅 The digits 14122002 are a date: day, month, year. Which chunking shows the date? (a) 141/220/02 (b) 14/12/2002 (c) 1412/20/02 (d) 14/1220/02
29. 29.🔢 You want to remember the number 108830748. Which chunked version keeps every digit in the same order? (a) 108 833 0748 (b) 108 837 48 (c) 108 830 748 (d) 018 830 748
30. 30.📅 The digits 21122024 are a date: day, month, year. Which chunking shows the date? (a) 2112/20/24 (b) 21/1220/24 (c) 211/220/24 (d) 21/12/2024
31. 31.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
32. 32.🔢 You want to remember the number 217128490777. Which chunked version keeps every digit in the same order? (a) 2171 2849 00777 (b) 2171 2849 0777 (c) 2172 8490 777 (d) 1271 2849 0777
33. 33.📅 The digits 16061972 are a date: day, month, year. Which chunking shows the date? (a) 1606/19/72 (b) 160/619/72 (c) 16/06/1972 (d) 16/0619/72
34. 34.📅 The digits 05032024 are a date: day, month, year. Which chunking shows the date? (a) 0503/20/24 (b) 05/0320/24 (c) 050/320/24 (d) 05/03/2024
35. 35.🔢 You want to remember the number 7655416488. Which chunked version keeps every digit in the same order? (a) 765 541 6848 (b) 765 544 16488 (c) 765 541 6488 (d) 655 416 488
36. 36.🔢 You want to remember the number 6231629327. Which chunked version keeps every digit in the same order? (a) 623 162 937 (b) 632 162 9327 (c) 623 162 9327 (d) 623 162 93227
37. 37.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
38. 38.🔢 You want to remember the number 4270322784. Which chunked version keeps every digit in the same order? (a) 442 703 22784 (b) 427 032 2748 (c) 427 032 278 (d) 427 032 2784
39. 39.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
40. 40.📅 The digits 17111971 are a date: day, month, year. Which chunking shows the date? (a) 171/119/71 (b) 17/1119/71 (c) 17/11/1971 (d) 1711/19/71

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