Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 781 · 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.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
2. 2.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
3. 3.🔢 You want to remember the number 231084002. Which chunked version keeps every digit in the same order? (a) 231 080 402 (b) 231 084 002 (c) 233 108 4002 (d) 231 040 02
4. 4.📅 The digits 19121987 are a date: day, month, year. Which chunking shows the date? (a) 19/12/1987 (b) 19/1219/87 (c) 1912/19/87 (d) 191/219/87
5. 5.🔢 You want to remember the number 2335469823. Which chunked version keeps every digit in the same order? (a) 233 546 823 (b) 233 546 9823 (c) 235 346 9823 (d) 233 544 69823
6. 6.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) it is printed bigger (d) three chunks, not ten
7. 7.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) writing it twice (d) saying it backwards
8. 8.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
9. 9.🔢 You want to remember the number 1399522259. Which chunked version keeps every digit in the same order? (a) 139 952 229 (b) 133 995 22259 (c) 319 952 2259 (d) 139 952 2259
10. 10.🔢 You want to remember the number 758328859. Which chunked version keeps every digit in the same order? (a) 758 328 895 (b) 758 322 8859 (c) 758 328 859 (d) 758 328 59
11. 11.🔢 You want to remember the number 7170718377. Which chunked version keeps every digit in the same order? (a) 770 718 377 (b) 717 071 8377 (c) 717 707 18377 (d) 177 071 8377
12. 12.🔢 A chunk is easiest to keep when it… (a) changes daily (b) is very long (c) has no pattern (d) means something to you
13. 13.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
14. 14.📅 The digits 16031981 are a date: day, month, year. Which chunking shows the date? (a) 16/03/1981 (b) 160/319/81 (c) 16/0319/81 (d) 1603/19/81
15. 15.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.📅 The digits 28041991 are a date: day, month, year. Which chunking shows the date? (a) 28/0419/91 (b) 280/419/91 (c) 2804/19/91 (d) 28/04/1991
17. 17.🔢 You want to remember the number 441103211. Which chunked version keeps every digit in the same order? (a) 441 103 211 (b) 444 110 3211 (c) 441 013 211 (d) 411 032 11
18. 18.📅 The digits 20031956 are a date: day, month, year. Which chunking shows the date? (a) 200/319/56 (b) 20/03/1956 (c) 20/0319/56 (d) 2003/19/56
19. 19.🔢 You want to remember the number 2074382174. Which chunked version keeps every digit in the same order? (a) 204 738 2174 (b) 207 438 21774 (c) 207 432 174 (d) 207 438 2174
20. 20.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
21. 21.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
22. 22.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
23. 23.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
24. 24.🔢 You want to remember the number 266529711057. Which chunked version keeps every digit in the same order? (a) 2665 9271 1057 (b) 2665 2297 11057 (c) 2665 2971 057 (d) 2665 2971 1057
25. 25.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 194 and 7 (d) 19 and 47
26. 26.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
27. 27.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
28. 28.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
29. 29.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
30. 30.🔢 You want to remember the number 128505455775. Which chunked version keeps every digit in the same order? (a) 1285 0545 5775 (b) 1250 5455 775 (c) 1285 0545 57755 (d) 1285 0545 7575
31. 31.📅 The digits 13061984 are a date: day, month, year. Which chunking shows the date? (a) 13/06/1984 (b) 130/619/84 (c) 13/0619/84 (d) 1306/19/84
32. 32.📅 The digits 20022013 are a date: day, month, year. Which chunking shows the date? (a) 20/02/2013 (b) 2002/20/13 (c) 200/220/13 (d) 20/0220/13
33. 33.📅 The digits 09012020 are a date: day, month, year. Which chunking shows the date? (a) 090/120/20 (b) 09/01/2020 (c) 09/0120/20 (d) 0901/20/20
34. 34.📅 The digits 16022007 are a date: day, month, year. Which chunking shows the date? (a) 16/02/2007 (b) 160/220/07 (c) 16/0220/07 (d) 1602/20/07
35. 35.📅 The digits 06071950 are a date: day, month, year. Which chunking shows the date? (a) 060/719/50 (b) 0607/19/50 (c) 06/07/1950 (d) 06/0719/50
36. 36.📅 The digits 12012009 are a date: day, month, year. Which chunking shows the date? (a) 120/120/09 (b) 1201/20/09 (c) 12/01/2009 (d) 12/0120/09
37. 37.🔢 You want to remember the number 9831707730. Which chunked version keeps every digit in the same order? (a) 983 107 730 (b) 983 170 7730 (c) 938 170 7730 (d) 983 317 07730
38. 38.📅 The digits 07041951 are a date: day, month, year. Which chunking shows the date? (a) 0704/19/51 (b) 07/04/1951 (c) 070/419/51 (d) 07/0419/51
39. 39.📅 The digits 15042020 are a date: day, month, year. Which chunking shows the date? (a) 15/04/2020 (b) 1504/20/20 (c) 150/420/20 (d) 15/0420/20
40. 40.📅 The digits 15041965 are a date: day, month, year. Which chunking shows the date? (a) 1504/19/65 (b) 15/0419/65 (c) 150/419/65 (d) 15/04/1965

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