Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 923 · 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 20-digit number is split into chunks of 4 digits each. How many chunks is that?
2. 2.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
3. 3.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 9 4 7 (c) 194 and 7 (d) 1 and 947
4. 4.📅 The digits 17011982 are a date: day, month, year. Which chunking shows the date? (a) 170/119/82 (b) 17/01/1982 (c) 1701/19/82 (d) 17/0119/82
5. 5.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
6. 6.📅 The digits 04071992 are a date: day, month, year. Which chunking shows the date? (a) 04/07/1992 (b) 040/719/92 (c) 0407/19/92 (d) 04/0719/92
7. 7.🔢 A chunk is easiest to keep when it… (a) means something to you (b) changes daily (c) is very long (d) has no pattern
8. 8.📅 The digits 14011968 are a date: day, month, year. Which chunking shows the date? (a) 1401/19/68 (b) 140/119/68 (c) 14/01/1968 (d) 14/0119/68
9. 9.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
10. 10.🔢 You want to remember the number 8196657487. Which chunked version keeps every digit in the same order? (a) 189 665 7487 (b) 819 665 7487 (c) 819 966 57487 (d) 819 665 747
11. 11.🔢 You want to remember the number 3116024567. Which chunked version keeps every digit in the same order? (a) 316 024 567 (b) 311 602 45567 (c) 311 602 4567 (d) 311 602 4657
12. 12.📅 The digits 18031979 are a date: day, month, year. Which chunking shows the date? (a) 18/03/1979 (b) 1803/19/79 (c) 18/0319/79 (d) 180/319/79
13. 13.🔢 You want to remember the number 815449551433. Which chunked version keeps every digit in the same order? (a) 8154 4955 1433 (b) 8154 4955 143 (c) 8154 4951 5433 (d) 8154 4955 51433
14. 14.🔢 You want to remember the number 506497714321. Which chunked version keeps every digit in the same order? (a) 5064 9771 4321 (b) 5064 9777 14321 (c) 5064 9771 4231 (d) 5649 7714 321
15. 15.🔢 You want to remember the number 524653338. Which chunked version keeps every digit in the same order? (a) 524 563 338 (b) 524 653 338 (c) 524 653 3338 (d) 546 533 38
16. 16.📅 The digits 17071972 are a date: day, month, year. Which chunking shows the date? (a) 1707/19/72 (b) 170/719/72 (c) 17/07/1972 (d) 17/0719/72
17. 17.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
18. 18.🔢 You want to remember the number 1185588198. Which chunked version keeps every digit in the same order? (a) 118 558 1898 (b) 118 558 8198 (c) 118 558 819 (d) 118 558 81998
19. 19.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
20. 20.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
21. 21.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) saying it backwards (d) writing it twice
22. 22.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures
23. 23.📅 The digits 08041953 are a date: day, month, year. Which chunking shows the date? (a) 08/04/1953 (b) 080/419/53 (c) 08/0419/53 (d) 0804/19/53
24. 24.🔢 You want to remember the number 823033067793. Which chunked version keeps every digit in the same order? (a) 8230 3067 793 (b) 8320 3306 7793 (c) 8230 3306 7793 (d) 8230 3306 77793
25. 25.🔢 You want to remember the number 122147226228. Which chunked version keeps every digit in the same order? (a) 1221 4722 6228 (b) 1221 4722 66228 (c) 1221 4722 6282 (d) 1221 4722 628
26. 26.📅 The digits 01051970 are a date: day, month, year. Which chunking shows the date? (a) 01/0519/70 (b) 010/519/70 (c) 0105/19/70 (d) 01/05/1970
27. 27.📅 The digits 23051966 are a date: day, month, year. Which chunking shows the date? (a) 230/519/66 (b) 23/0519/66 (c) 2305/19/66 (d) 23/05/1966
28. 28.🔢 You want to remember the number 507254563104. Which chunked version keeps every digit in the same order? (a) 5075 4563 104 (b) 5072 5453 6104 (c) 5072 2545 63104 (d) 5072 5456 3104
29. 29.📅 The digits 10012022 are a date: day, month, year. Which chunking shows the date? (a) 10/0120/22 (b) 1001/20/22 (c) 10/01/2022 (d) 100/120/22
30. 30.📅 The digits 14012006 are a date: day, month, year. Which chunking shows the date? (a) 1401/20/06 (b) 14/01/2006 (c) 140/120/06 (d) 14/0120/06
31. 31.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
32. 32.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
33. 33.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
34. 34.📅 The digits 01031996 are a date: day, month, year. Which chunking shows the date? (a) 01/0319/96 (b) 0103/19/96 (c) 01/03/1996 (d) 010/319/96
35. 35.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
36. 36.🔢 You want to remember the number 229802860533. Which chunked version keeps every digit in the same order? (a) 2298 0286 053 (b) 2298 0228 60533 (c) 2298 0286 0533 (d) 2298 0286 5033
37. 37.🔢 You want to remember the number 7850922029. Which chunked version keeps every digit in the same order? (a) 785 009 22029 (b) 785 922 029 (c) 785 029 2029 (d) 785 092 2029
38. 38.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
39. 39.📅 The digits 24021970 are a date: day, month, year. Which chunking shows the date? (a) 24/02/1970 (b) 240/219/70 (c) 2402/19/70 (d) 24/0219/70
40. 40.📅 The digits 12122002 are a date: day, month, year. Which chunking shows the date? (a) 12/1220/02 (b) 12/12/2002 (c) 1212/20/02 (d) 121/220/02

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