Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 321 · 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.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) numbers and letter lists (d) only pictures
2. 2.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) reading very fast (d) splitting into groups
3. 3.📅 The digits 12021969 are a date: day, month, year. Which chunking shows the date? (a) 12/02/1969 (b) 120/219/69 (c) 1202/19/69 (d) 12/0219/69
4. 4.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 9 4 7 (d) 1 and 947
5. 5.🔢 You want to remember the number 1154402642. Which chunked version keeps every digit in the same order? (a) 115 444 02642 (b) 151 440 2642 (c) 115 440 2642 (d) 115 402 642
6. 6.📅 The digits 12052011 are a date: day, month, year. Which chunking shows the date? (a) 120/520/11 (b) 12/0520/11 (c) 12/05/2011 (d) 1205/20/11
7. 7.📅 The digits 28031977 are a date: day, month, year. Which chunking shows the date? (a) 28/03/1977 (b) 2803/19/77 (c) 28/0319/77 (d) 280/319/77
8. 8.📅 The digits 17082014 are a date: day, month, year. Which chunking shows the date? (a) 170/820/14 (b) 1708/20/14 (c) 17/0820/14 (d) 17/08/2014
9. 9.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) has no pattern (d) means something to you
10. 10.🔢 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
11. 11.🔢 You want to remember the number 385526382721. Which chunked version keeps every digit in the same order? (a) 3855 2632 8721 (b) 3852 6382 721 (c) 3885 5263 82721 (d) 3855 2638 2721
12. 12.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
13. 13.🔢 You want to remember the number 665485225. Which chunked version keeps every digit in the same order? (a) 665 448 5225 (b) 665 485 25 (c) 665 482 525 (d) 665 485 225
14. 14.🔢 You want to remember the number 1996533760. Which chunked version keeps every digit in the same order? (a) 199 653 3760 (b) 199 563 3760 (c) 199 965 33760 (d) 199 653 760
15. 15.📅 The digits 07061962 are a date: day, month, year. Which chunking shows the date? (a) 070/619/62 (b) 0706/19/62 (c) 07/0619/62 (d) 07/06/1962
16. 16.📅 The digits 01012021 are a date: day, month, year. Which chunking shows the date? (a) 0101/20/21 (b) 010/120/21 (c) 01/0120/21 (d) 01/01/2021
17. 17.📅 The digits 21081995 are a date: day, month, year. Which chunking shows the date? (a) 210/819/95 (b) 2108/19/95 (c) 21/0819/95 (d) 21/08/1995
18. 18.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
19. 19.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
20. 20.🔢 You want to remember the number 2157079062. Which chunked version keeps every digit in the same order? (a) 217 079 062 (b) 215 707 9062 (c) 215 707 9026 (d) 215 570 79062
21. 21.🔢 You want to remember the number 1016250152. Which chunked version keeps every digit in the same order? (a) 101 625 015 (b) 100 162 50152 (c) 101 625 1052 (d) 101 625 0152
22. 22.🔢 You want to remember the number 1604995164. Which chunked version keeps every digit in the same order? (a) 160 499 5146 (b) 160 499 51664 (c) 160 499 564 (d) 160 499 5164
23. 23.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
24. 24.📅 The digits 06042023 are a date: day, month, year. Which chunking shows the date? (a) 06/04/2023 (b) 060/420/23 (c) 0604/20/23 (d) 06/0420/23
25. 25.🔢 You want to remember the number 749132321. Which chunked version keeps every digit in the same order? (a) 749 132 2321 (b) 749 132 321 (c) 749 123 21 (d) 749 312 321
26. 26.📅 The digits 24031985 are a date: day, month, year. Which chunking shows the date? (a) 240/319/85 (b) 24/0319/85 (c) 24/03/1985 (d) 2403/19/85
27. 27.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
28. 28.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
29. 29.🔢 You want to remember the number 837798410. Which chunked version keeps every digit in the same order? (a) 837 798 4100 (b) 837 789 410 (c) 837 798 410 (d) 877 984 10
30. 30.🔢 You want to remember the number 997328415. Which chunked version keeps every digit in the same order? (a) 999 732 8415 (b) 997 328 415 (c) 997 328 145 (d) 997 328 15
31. 31.📅 The digits 14031960 are a date: day, month, year. Which chunking shows the date? (a) 14/0319/60 (b) 1403/19/60 (c) 140/319/60 (d) 14/03/1960
32. 32.📅 The digits 16021957 are a date: day, month, year. Which chunking shows the date? (a) 16/0219/57 (b) 1602/19/57 (c) 16/02/1957 (d) 160/219/57
33. 33.📅 The digits 25011974 are a date: day, month, year. Which chunking shows the date? (a) 2501/19/74 (b) 25/0119/74 (c) 25/01/1974 (d) 250/119/74
34. 34.📅 The digits 02061951 are a date: day, month, year. Which chunking shows the date? (a) 020/619/51 (b) 02/06/1951 (c) 02/0619/51 (d) 0206/19/51
35. 35.🔢 You want to remember the number 517806662. Which chunked version keeps every digit in the same order? (a) 517 806 662 (b) 517 086 662 (c) 517 806 6622 (d) 517 066 62
36. 36.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
37. 37.🔢 You want to remember the number 495120462. Which chunked version keeps every digit in the same order? (a) 495 120 462 (b) 495 120 62 (c) 495 120 4462 (d) 945 120 462
38. 38.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
39. 39.🔢 You want to remember the number 137256181221. Which chunked version keeps every digit in the same order? (a) 1372 5611 221 (b) 1372 5618 12221 (c) 1372 5618 1221 (d) 1375 2618 1221
40. 40.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?

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