Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 425 · 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.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
2. 2.🔢 You want to remember the number 140371136. Which chunked version keeps every digit in the same order? (a) 140 037 1136 (b) 140 371 136 (c) 140 371 316 (d) 140 371 16
3. 3.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 1 9 4 7 (c) 19 and 47 (d) 194 and 7
4. 4.📅 The digits 11111968 are a date: day, month, year. Which chunking shows the date? (a) 111/119/68 (b) 1111/19/68 (c) 11/11/1968 (d) 11/1119/68
5. 5.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
6. 6.📅 The digits 20112007 are a date: day, month, year. Which chunking shows the date? (a) 20/1120/07 (b) 20/11/2007 (c) 201/120/07 (d) 2011/20/07
7. 7.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
8. 8.🔢 You want to remember the number 825734130. Which chunked version keeps every digit in the same order? (a) 825 734 1330 (b) 825 734 13 (c) 825 734 130 (d) 827 534 130
9. 9.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
10. 10.📅 The digits 20061998 are a date: day, month, year. Which chunking shows the date? (a) 200/619/98 (b) 20/0619/98 (c) 2006/19/98 (d) 20/06/1998
11. 11.📅 The digits 06021963 are a date: day, month, year. Which chunking shows the date? (a) 06/02/1963 (b) 06/0219/63 (c) 060/219/63 (d) 0602/19/63
12. 12.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
13. 13.🔢 You want to remember the number 425356230. Which chunked version keeps every digit in the same order? (a) 422 535 6230 (b) 425 356 23 (c) 425 356 230 (d) 425 536 230
14. 14.📅 The digits 28011952 are a date: day, month, year. Which chunking shows the date? (a) 2801/19/52 (b) 28/0119/52 (c) 280/119/52 (d) 28/01/1952
15. 15.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) numbers and letter lists (d) only pictures
16. 16.📅 The digits 08021955 are a date: day, month, year. Which chunking shows the date? (a) 08/02/1955 (b) 080/219/55 (c) 0802/19/55 (d) 08/0219/55
17. 17.🔢 You want to remember the number 3819418026. Which chunked version keeps every digit in the same order? (a) 381 941 80026 (b) 381 918 026 (c) 389 141 8026 (d) 381 941 8026
18. 18.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
19. 19.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
20. 20.📅 The digits 10111967 are a date: day, month, year. Which chunking shows the date? (a) 101/119/67 (b) 10/1119/67 (c) 1011/19/67 (d) 10/11/1967
21. 21.🔢 You want to remember the number 462814377. Which chunked version keeps every digit in the same order? (a) 462 814 37 (b) 462 814 377 (c) 462 814 737 (d) 466 281 4377
22. 22.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
23. 23.🔢 You want to remember the number 654507956035. Which chunked version keeps every digit in the same order? (a) 6554 5079 56035 (b) 6545 0796 035 (c) 6545 0795 6035 (d) 6540 5795 6035
24. 24.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
25. 25.📅 The digits 13021993 are a date: day, month, year. Which chunking shows the date? (a) 1302/19/93 (b) 13/02/1993 (c) 130/219/93 (d) 13/0219/93
26. 26.🔢 You want to remember the number 283748328. Which chunked version keeps every digit in the same order? (a) 283 784 328 (b) 237 483 28 (c) 283 748 328 (d) 283 374 8328
27. 27.📅 The digits 12071976 are a date: day, month, year. Which chunking shows the date? (a) 1207/19/76 (b) 120/719/76 (c) 12/0719/76 (d) 12/07/1976
28. 28.🔢 You want to remember the number 333370713881. Which chunked version keeps every digit in the same order? (a) 3333 7071 3881 (b) 3337 3071 3881 (c) 3333 7071 38881 (d) 3337 0713 881
29. 29.📅 The digits 06061989 are a date: day, month, year. Which chunking shows the date? (a) 06/0619/89 (b) 060/619/89 (c) 0606/19/89 (d) 06/06/1989
30. 30.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
31. 31.📅 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
32. 32.📅 The digits 08122000 are a date: day, month, year. Which chunking shows the date? (a) 08/12/2000 (b) 081/220/00 (c) 08/1220/00 (d) 0812/20/00
33. 33.📅 The digits 13031955 are a date: day, month, year. Which chunking shows the date? (a) 13/03/1955 (b) 13/0319/55 (c) 1303/19/55 (d) 130/319/55
34. 34.🔢 You want to remember the number 616751350701. Which chunked version keeps every digit in the same order? (a) 6167 5135 0701 (b) 6167 5135 07701 (c) 6175 1350 701 (d) 6167 5135 0710
35. 35.📅 The digits 17031955 are a date: day, month, year. Which chunking shows the date? (a) 17/0319/55 (b) 17/03/1955 (c) 1703/19/55 (d) 170/319/55
36. 36.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
37. 37.🔢 You want to remember the number 6012938325. Which chunked version keeps every digit in the same order? (a) 601 293 83325 (b) 061 293 8325 (c) 601 293 8325 (d) 602 938 325
38. 38.🔢 You want to remember the number 298523988542. Which chunked version keeps every digit in the same order? (a) 2895 2398 8542 (b) 2952 3988 542 (c) 2985 2398 8542 (d) 2298 5239 88542
39. 39.📅 The digits 14091977 are a date: day, month, year. Which chunking shows the date? (a) 140/919/77 (b) 1409/19/77 (c) 14/09/1977 (d) 14/0919/77
40. 40.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?

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