Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 641 · 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 20031991 are a date: day, month, year. Which chunking shows the date? (a) 2003/19/91 (b) 200/319/91 (c) 20/0319/91 (d) 20/03/1991
2. 2.📅 The digits 02012020 are a date: day, month, year. Which chunking shows the date? (a) 0201/20/20 (b) 020/120/20 (c) 02/0120/20 (d) 02/01/2020
3. 3.🔢 You want to remember the number 2571133971. Which chunked version keeps every digit in the same order? (a) 255 711 33971 (b) 257 113 3917 (c) 257 113 391 (d) 257 113 3971
4. 4.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
6. 6.🔢 You want to remember the number 748125768. Which chunked version keeps every digit in the same order? (a) 774 812 5768 (b) 748 127 68 (c) 748 125 768 (d) 748 152 768
7. 7.📅 The digits 15031985 are a date: day, month, year. Which chunking shows the date? (a) 150/319/85 (b) 1503/19/85 (c) 15/03/1985 (d) 15/0319/85
8. 8.📅 The digits 13071983 are a date: day, month, year. Which chunking shows the date? (a) 13/07/1983 (b) 1307/19/83 (c) 13/0719/83 (d) 130/719/83
9. 9.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
10. 10.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
11. 11.🔢 You want to remember the number 8550100467. Which chunked version keeps every digit in the same order? (a) 855 001 00467 (b) 585 010 0467 (c) 855 000 467 (d) 855 010 0467
12. 12.🔢 You want to remember the number 7103555374. Which chunked version keeps every digit in the same order? (a) 710 335 55374 (b) 170 355 5374 (c) 710 355 5374 (d) 710 355 374
13. 13.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
14. 14.🔢 You want to remember the number 685040004857. Which chunked version keeps every digit in the same order? (a) 6850 0400 4857 (b) 6504 0004 857 (c) 6850 4400 04857 (d) 6850 4000 4857
15. 15.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
16. 16.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
17. 17.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
18. 18.🔢 You want to remember the number 335218443944. Which chunked version keeps every digit in the same order? (a) 3532 1844 3944 (b) 3352 1844 3944 (c) 3355 2184 43944 (d) 3521 8443 944
19. 19.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
20. 20.🔢 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
21. 21.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
22. 22.🔢 You want to remember the number 531827867880. Which chunked version keeps every digit in the same order? (a) 5318 2787 880 (b) 5318 8278 67880 (c) 5318 2786 7880 (d) 5318 2876 7880
23. 23.🔢 You want to remember the number 345571856639. Which chunked version keeps every digit in the same order? (a) 3457 1856 639 (b) 3445 5718 56639 (c) 3455 7185 6639 (d) 3455 7185 6369
24. 24.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
25. 25.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
26. 26.📅 The digits 27101956 are a date: day, month, year. Which chunking shows the date? (a) 2710/19/56 (b) 27/1019/56 (c) 271/019/56 (d) 27/10/1956
27. 27.🔢 You want to remember the number 127490462. Which chunked version keeps every digit in the same order? (a) 127 490 46 (b) 127 490 4662 (c) 127 490 462 (d) 127 940 462
28. 28.🔢 You want to remember the number 540193547165. Which chunked version keeps every digit in the same order? (a) 4501 9354 7165 (b) 4019 3547 165 (c) 5401 9335 47165 (d) 5401 9354 7165
29. 29.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 1 and 947 (d) 19 and 47
30. 30.🔢 You want to remember the number 242500900. Which chunked version keeps every digit in the same order? (a) 242 050 900 (b) 242 500 9000 (c) 242 500 900 (d) 242 509 00
31. 31.📅 The digits 04082002 are a date: day, month, year. Which chunking shows the date? (a) 040/820/02 (b) 04/08/2002 (c) 04/0820/02 (d) 0408/20/02
32. 32.📅 The digits 17071980 are a date: day, month, year. Which chunking shows the date? (a) 170/719/80 (b) 1707/19/80 (c) 17/07/1980 (d) 17/0719/80
33. 33.🔢 You want to remember the number 957364009. Which chunked version keeps every digit in the same order? (a) 957 364 4009 (b) 957 364 090 (c) 957 364 009 (d) 957 340 09
34. 34.📅 The digits 17021985 are a date: day, month, year. Which chunking shows the date? (a) 170/219/85 (b) 1702/19/85 (c) 17/0219/85 (d) 17/02/1985
35. 35.📅 The digits 19071986 are a date: day, month, year. Which chunking shows the date? (a) 190/719/86 (b) 1907/19/86 (c) 19/0719/86 (d) 19/07/1986
36. 36.📅 The digits 13061965 are a date: day, month, year. Which chunking shows the date? (a) 130/619/65 (b) 13/06/1965 (c) 13/0619/65 (d) 1306/19/65
37. 37.📅 The digits 08111954 are a date: day, month, year. Which chunking shows the date? (a) 08/11/1954 (b) 081/119/54 (c) 0811/19/54 (d) 08/1119/54
38. 38.📅 The digits 07121958 are a date: day, month, year. Which chunking shows the date? (a) 0712/19/58 (b) 071/219/58 (c) 07/1219/58 (d) 07/12/1958
39. 39.🔢 You want to remember the number 987221382. Which chunked version keeps every digit in the same order? (a) 987 221 382 (b) 982 721 382 (c) 987 221 3382 (d) 987 213 82
40. 40.📅 The digits 08031962 are a date: day, month, year. Which chunking shows the date? (a) 08/0319/62 (b) 08/03/1962 (c) 0803/19/62 (d) 080/319/62

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