Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 525 · 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 721049675380. Which chunked version keeps every digit in the same order? (a) 7210 4967 5380 (b) 7210 4976 5380 (c) 7210 4967 75380 (d) 7210 4675 380
2. 2.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) saying it backwards (d) writing it twice
3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is a smaller number (d) it is printed bigger
4. 4.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
5. 5.📅 The digits 21031962 are a date: day, month, year. Which chunking shows the date? (a) 21/0319/62 (b) 210/319/62 (c) 2103/19/62 (d) 21/03/1962
6. 6.🔢 You want to remember the number 224335212. Which chunked version keeps every digit in the same order? (a) 224 333 5212 (b) 224 352 12 (c) 224 353 212 (d) 224 335 212
7. 7.📅 The digits 28011990 are a date: day, month, year. Which chunking shows the date? (a) 2801/19/90 (b) 28/0119/90 (c) 280/119/90 (d) 28/01/1990
8. 8.🔢 You want to remember the number 5019057558. Which chunked version keeps every digit in the same order? (a) 509 105 7558 (b) 501 905 758 (c) 501 905 7558 (d) 501 190 57558
9. 9.🔢 You want to remember the number 145143910. Which chunked version keeps every digit in the same order? (a) 145 144 3910 (b) 145 134 910 (c) 145 143 90 (d) 145 143 910
10. 10.📅 The digits 28121972 are a date: day, month, year. Which chunking shows the date? (a) 28/1219/72 (b) 28/12/1972 (c) 281/219/72 (d) 2812/19/72
11. 11.🔢 You want to remember the number 9335742528. Which chunked version keeps every digit in the same order? (a) 933 547 2528 (b) 933 574 2528 (c) 933 574 228 (d) 933 357 42528
12. 12.📅 The digits 26111987 are a date: day, month, year. Which chunking shows the date? (a) 2611/19/87 (b) 26/11/1987 (c) 261/119/87 (d) 26/1119/87
13. 13.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
14. 14.🔢 You want to remember the number 565442134921. Which chunked version keeps every digit in the same order? (a) 5654 4214 921 (b) 5654 4213 4921 (c) 5654 4213 34921 (d) 5654 4123 4921
15. 15.📅 The digits 01052023 are a date: day, month, year. Which chunking shows the date? (a) 0105/20/23 (b) 010/520/23 (c) 01/05/2023 (d) 01/0520/23
16. 16.🔢 You want to remember the number 459790958. Which chunked version keeps every digit in the same order? (a) 459 979 0958 (b) 457 990 958 (c) 459 790 958 (d) 457 909 58
17. 17.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 19 and 47 (c) 1 9 4 7 (d) 1 and 947
18. 18.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) is very long (d) means something to you
19. 19.📅 The digits 26062025 are a date: day, month, year. Which chunking shows the date? (a) 2606/20/25 (b) 26/06/2025 (c) 26/0620/25 (d) 260/620/25
20. 20.🔢 You want to remember the number 273390577309. Which chunked version keeps every digit in the same order? (a) 2273 3905 77309 (b) 2733 9507 7309 (c) 2733 9057 7309 (d) 2733 9577 309
21. 21.📅 The digits 28122023 are a date: day, month, year. Which chunking shows the date? (a) 281/220/23 (b) 28/1220/23 (c) 2812/20/23 (d) 28/12/2023
22. 22.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
23. 23.🔢 You want to remember the number 190108040. Which chunked version keeps every digit in the same order? (a) 190 108 8040 (b) 190 108 040 (c) 190 180 40 (d) 109 108 040
24. 24.🔢 You want to remember the number 858652026452. Which chunked version keeps every digit in the same order? (a) 8858 6520 26452 (b) 8585 2026 452 (c) 8856 5202 6452 (d) 8586 5202 6452
25. 25.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
26. 26.📅 The digits 09071992 are a date: day, month, year. Which chunking shows the date? (a) 09/07/1992 (b) 09/0719/92 (c) 0907/19/92 (d) 090/719/92
27. 27.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
28. 28.🔢 You want to remember the number 5285447415. Which chunked version keeps every digit in the same order? (a) 525 844 7415 (b) 522 854 47415 (c) 528 544 7415 (d) 528 544 715
29. 29.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
30. 30.🔢 You want to remember the number 359019442. Which chunked version keeps every digit in the same order? (a) 359 019 442 (b) 395 019 442 (c) 359 019 4442 (d) 390 194 42
31. 31.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
32. 32.🔢 You want to remember the number 2641850100. Which chunked version keeps every digit in the same order? (a) 641 850 100 (b) 266 418 50100 (c) 264 158 0100 (d) 264 185 0100
33. 33.📅 The digits 12081993 are a date: day, month, year. Which chunking shows the date? (a) 12/08/1993 (b) 1208/19/93 (c) 12/0819/93 (d) 120/819/93
34. 34.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) only numbers (d) nothing at all
35. 35.🔢 You want to remember the number 9152785141. Which chunked version keeps every digit in the same order? (a) 915 278 55141 (b) 915 278 5141 (c) 952 785 141 (d) 951 278 5141
36. 36.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
37. 37.📅 The digits 05092024 are a date: day, month, year. Which chunking shows the date? (a) 05/09/2024 (b) 050/920/24 (c) 0509/20/24 (d) 05/0920/24
38. 38.🔢 You want to remember the number 431285279. Which chunked version keeps every digit in the same order? (a) 431 825 279 (b) 431 285 279 (c) 431 282 79 (d) 431 128 5279
39. 39.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
40. 40.📅 The digits 20092023 are a date: day, month, year. Which chunking shows the date? (a) 20/0920/23 (b) 200/920/23 (c) 20/09/2023 (d) 2009/20/23

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