Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 277 · 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 9-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 You want to remember the number 650373554. Which chunked version keeps every digit in the same order? (a) 650 373 554 (b) 650 373 5544 (c) 653 073 554 (d) 650 335 54
3. 3.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
4. 4.🔢 You want to remember the number 352194560. Which chunked version keeps every digit in the same order? (a) 352 194 5660 (b) 352 194 650 (c) 352 194 560 (d) 352 194 50
5. 5.📅 The digits 14012001 are a date: day, month, year. Which chunking shows the date? (a) 1401/20/01 (b) 14/0120/01 (c) 140/120/01 (d) 14/01/2001
6. 6.📅 The digits 07032006 are a date: day, month, year. Which chunking shows the date? (a) 0703/20/06 (b) 07/0320/06 (c) 070/320/06 (d) 07/03/2006
7. 7.📅 The digits 10041985 are a date: day, month, year. Which chunking shows the date? (a) 10/04/1985 (b) 100/419/85 (c) 1004/19/85 (d) 10/0419/85
8. 8.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 and 947 (d) 1 9 4 7
9. 9.📅 The digits 24051968 are a date: day, month, year. Which chunking shows the date? (a) 2405/19/68 (b) 240/519/68 (c) 24/0519/68 (d) 24/05/1968
10. 10.🔢 You want to remember the number 6775370865. Which chunked version keeps every digit in the same order? (a) 675 737 0865 (b) 677 537 08655 (c) 677 570 865 (d) 677 537 0865
11. 11.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
12. 12.📅 The digits 06121978 are a date: day, month, year. Which chunking shows the date? (a) 061/219/78 (b) 06/12/1978 (c) 0612/19/78 (d) 06/1219/78
13. 13.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
14. 14.📅 The digits 09011978 are a date: day, month, year. Which chunking shows the date? (a) 0901/19/78 (b) 090/119/78 (c) 09/01/1978 (d) 09/0119/78
15. 15.🔢 You want to remember the number 399633191621. Which chunked version keeps every digit in the same order? (a) 3996 3319 1621 (b) 3996 3319 6121 (c) 3963 3191 621 (d) 3996 6331 91621
16. 16.🔢 You want to remember the number 7480089800. Which chunked version keeps every digit in the same order? (a) 748 008 8900 (b) 774 800 89800 (c) 740 089 800 (d) 748 008 9800
17. 17.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
18. 18.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
19. 19.📅 The digits 20111964 are a date: day, month, year. Which chunking shows the date? (a) 201/119/64 (b) 20/11/1964 (c) 2011/19/64 (d) 20/1119/64
20. 20.🔢 You want to remember the number 112171360. Which chunked version keeps every digit in the same order? (a) 112 171 1360 (b) 112 171 360 (c) 121 713 60 (d) 112 711 360
21. 21.🔢 You want to remember the number 102479212729. Which chunked version keeps every digit in the same order? (a) 1024 7921 2279 (b) 1024 7921 12729 (c) 1024 7921 2729 (d) 1024 7921 729
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.📅 The digits 23011966 are a date: day, month, year. Which chunking shows the date? (a) 23/01/1966 (b) 23/0119/66 (c) 230/119/66 (d) 2301/19/66
24. 24.🔢 You want to remember the number 8639380274. Which chunked version keeps every digit in the same order? (a) 863 980 274 (b) 863 938 0247 (c) 863 938 02774 (d) 863 938 0274
25. 25.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
26. 26.🔢 You want to remember the number 306434857403. Which chunked version keeps every digit in the same order? (a) 3064 3857 403 (b) 3066 4348 57403 (c) 3064 3485 7043 (d) 3064 3485 7403
27. 27.🔢 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
28. 28.🔢 You want to remember the number 356863642. Which chunked version keeps every digit in the same order? (a) 356 863 62 (b) 536 863 642 (c) 356 863 6442 (d) 356 863 642
29. 29.🔢 You want to remember the number 950872297920. Which chunked version keeps every digit in the same order? (a) 9580 7229 7920 (b) 9508 7229 7920 (c) 9550 8722 97920 (d) 9508 7229 720
30. 30.🔢 You want to remember the number 966279109053. Which chunked version keeps every digit in the same order? (a) 9662 7910 9035 (b) 9662 7109 053 (c) 9662 7910 90553 (d) 9662 7910 9053
31. 31.📅 The digits 15062023 are a date: day, month, year. Which chunking shows the date? (a) 15/0620/23 (b) 1506/20/23 (c) 15/06/2023 (d) 150/620/23
32. 32.📅 The digits 20042004 are a date: day, month, year. Which chunking shows the date? (a) 20/0420/04 (b) 200/420/04 (c) 2004/20/04 (d) 20/04/2004
33. 33.🔢 You want to remember the number 632905792. Which chunked version keeps every digit in the same order? (a) 632 905 79 (b) 632 905 792 (c) 632 290 5792 (d) 632 095 792
34. 34.🔢 You want to remember the number 554757969645. Which chunked version keeps every digit in the same order? (a) 5547 7596 9645 (b) 5547 5796 69645 (c) 5547 5769 645 (d) 5547 5796 9645
35. 35.📅 The digits 21071957 are a date: day, month, year. Which chunking shows the date? (a) 2107/19/57 (b) 21/0719/57 (c) 210/719/57 (d) 21/07/1957
36. 36.🔢 You want to remember the number 899727157654. Which chunked version keeps every digit in the same order? (a) 8997 2715 7654 (b) 8997 2717 654 (c) 8997 7215 7654 (d) 8997 2715 76554
37. 37.🔢 You want to remember the number 911488983. Which chunked version keeps every digit in the same order? (a) 914 889 83 (b) 911 148 8983 (c) 911 488 893 (d) 911 488 983
38. 38.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
39. 39.📅 The digits 28101969 are a date: day, month, year. Which chunking shows the date? (a) 28/10/1969 (b) 2810/19/69 (c) 281/019/69 (d) 28/1019/69
40. 40.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures

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