Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 426 · 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 8-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.📅 The digits 23011974 are a date: day, month, year. Which chunking shows the date? (a) 23/01/1974 (b) 230/119/74 (c) 2301/19/74 (d) 23/0119/74
3. 3.📅 The digits 06122007 are a date: day, month, year. Which chunking shows the date? (a) 06/12/2007 (b) 06/1220/07 (c) 061/220/07 (d) 0612/20/07
4. 4.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 You want to remember the number 480253857. Which chunked version keeps every digit in the same order? (a) 408 253 857 (b) 480 025 3857 (c) 480 538 57 (d) 480 253 857
6. 6.🔢 You want to remember the number 625170594. Which chunked version keeps every digit in the same order? (a) 625 170 5994 (b) 625 170 59 (c) 625 170 594 (d) 652 170 594
7. 7.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) splitting into groups (d) saying it backwards
8. 8.📅 The digits 02101971 are a date: day, month, year. Which chunking shows the date? (a) 02/10/1971 (b) 02/1019/71 (c) 0210/19/71 (d) 021/019/71
9. 9.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it is a smaller number (d) it has fewer digits
10. 10.📅 The digits 27032020 are a date: day, month, year. Which chunking shows the date? (a) 270/320/20 (b) 27/03/2020 (c) 27/0320/20 (d) 2703/20/20
11. 11.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) is very long (d) changes daily
12. 12.🔢 You want to remember the number 875496921899. Which chunked version keeps every digit in the same order? (a) 8754 9692 1899 (b) 7549 6921 899 (c) 8755 4969 21899 (d) 8759 4692 1899
13. 13.📅 The digits 20071960 are a date: day, month, year. Which chunking shows the date? (a) 200/719/60 (b) 20/0719/60 (c) 20/07/1960 (d) 2007/19/60
14. 14.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures
15. 15.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
16. 16.🔢 You want to remember the number 916031530078. Which chunked version keeps every digit in the same order? (a) 9160 3153 00078 (b) 9160 3530 078 (c) 9160 3153 0078 (d) 9160 3153 0087
17. 17.📅 The digits 22111995 are a date: day, month, year. Which chunking shows the date? (a) 22/11/1995 (b) 221/119/95 (c) 22/1119/95 (d) 2211/19/95
18. 18.🔢 You want to remember the number 972369878. Which chunked version keeps every digit in the same order? (a) 972 369 788 (b) 972 369 878 (c) 972 369 8878 (d) 923 698 78
19. 19.📅 The digits 10122023 are a date: day, month, year. Which chunking shows the date? (a) 10/1220/23 (b) 1012/20/23 (c) 10/12/2023 (d) 101/220/23
20. 20.📅 The digits 03081971 are a date: day, month, year. Which chunking shows the date? (a) 03/08/1971 (b) 0308/19/71 (c) 03/0819/71 (d) 030/819/71
21. 21.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
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 753887781. Which chunked version keeps every digit in the same order? (a) 753 887 781 (b) 753 887 7781 (c) 753 887 71 (d) 753 878 781
24. 24.🔢 You want to remember the number 8800522092. Which chunked version keeps every digit in the same order? (a) 880 052 22092 (b) 880 052 2092 (c) 880 052 092 (d) 880 052 2029
25. 25.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
26. 26.🔢 You want to remember the number 5380170012. Which chunked version keeps every digit in the same order? (a) 583 017 0012 (b) 538 017 0012 (c) 380 170 012 (d) 538 011 70012
27. 27.🔢 You want to remember the number 239886061. Which chunked version keeps every digit in the same order? (a) 293 886 061 (b) 239 880 61 (c) 239 886 6061 (d) 239 886 061
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.📅 The digits 03082005 are a date: day, month, year. Which chunking shows the date? (a) 03/08/2005 (b) 0308/20/05 (c) 03/0820/05 (d) 030/820/05
30. 30.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 19 and 47 (d) 1 9 4 7
31. 31.🔢 You want to remember the number 8217310452. Which chunked version keeps every digit in the same order? (a) 821 173 10452 (b) 821 731 0452 (c) 812 731 0452 (d) 821 731 045
32. 32.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
33. 33.🔢 You want to remember the number 815072331194. Which chunked version keeps every digit in the same order? (a) 8150 7233 194 (b) 8150 7233 1194 (c) 8150 7323 1194 (d) 8155 0723 31194
34. 34.🔢 You want to remember the number 857002895970. Which chunked version keeps every digit in the same order? (a) 8570 0289 5970 (b) 8570 0289 970 (c) 8557 0028 95970 (d) 8570 0829 5970
35. 35.🔢 You want to remember the number 909324224. Which chunked version keeps every digit in the same order? (a) 990 932 4224 (b) 909 242 24 (c) 903 924 224 (d) 909 324 224
36. 36.📅 The digits 10121966 are a date: day, month, year. Which chunking shows the date? (a) 10/12/1966 (b) 1012/19/66 (c) 101/219/66 (d) 10/1219/66
37. 37.📅 The digits 01071950 are a date: day, month, year. Which chunking shows the date? (a) 01/0719/50 (b) 0107/19/50 (c) 010/719/50 (d) 01/07/1950
38. 38.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
39. 39.📅 The digits 08081959 are a date: day, month, year. Which chunking shows the date? (a) 08/0819/59 (b) 0808/19/59 (c) 080/819/59 (d) 08/08/1959
40. 40.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?

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