Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 114 · 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.🔢 You want to remember the number 2154583397. Which chunked version keeps every digit in the same order? (a) 215 458 339 (b) 215 548 3397 (c) 215 458 33997 (d) 215 458 3397
2. 2.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) means something to you (d) is very long
3. 3.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
4. 4.🔢 Instead of holding 9 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 803582751. Which chunked version keeps every digit in the same order? (a) 035 827 51 (b) 803 582 7751 (c) 803 582 715 (d) 803 582 751
6. 6.🔢 You want to remember the number 413489719987. Which chunked version keeps every digit in the same order? (a) 4134 8971 99987 (b) 4134 8979 987 (c) 1434 8971 9987 (d) 4134 8971 9987
7. 7.🔢 You want to remember the number 887830315. Which chunked version keeps every digit in the same order? (a) 887 830 3315 (b) 887 380 315 (c) 878 303 15 (d) 887 830 315
8. 8.🔢 You want to remember the number 3240221838. Which chunked version keeps every digit in the same order? (a) 324 022 18838 (b) 324 022 1838 (c) 324 022 188 (d) 234 022 1838
9. 9.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
10. 10.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
11. 11.📅 The digits 11121982 are a date: day, month, year. Which chunking shows the date? (a) 1112/19/82 (b) 11/1219/82 (c) 111/219/82 (d) 11/12/1982
12. 12.📅 The digits 12092023 are a date: day, month, year. Which chunking shows the date? (a) 12/0920/23 (b) 120/920/23 (c) 12/09/2023 (d) 1209/20/23
13. 13.🔢 You want to remember the number 352254032. Which chunked version keeps every digit in the same order? (a) 352 254 032 (b) 352 254 0332 (c) 352 540 32 (d) 325 254 032
14. 14.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
15. 15.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
16. 16.📅 The digits 23042022 are a date: day, month, year. Which chunking shows the date? (a) 23/0420/22 (b) 2304/20/22 (c) 230/420/22 (d) 23/04/2022
17. 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it is a smaller number (d) it has fewer digits
18. 18.📅 The digits 25061964 are a date: day, month, year. Which chunking shows the date? (a) 250/619/64 (b) 2506/19/64 (c) 25/06/1964 (d) 25/0619/64
19. 19.🔢 You want to remember the number 948273934124. Which chunked version keeps every digit in the same order? (a) 9482 7393 4124 (b) 4982 7393 4124 (c) 9482 7393 412 (d) 9482 7399 34124
20. 20.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
21. 21.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
22. 22.📅 The digits 05111970 are a date: day, month, year. Which chunking shows the date? (a) 05/11/1970 (b) 051/119/70 (c) 0511/19/70 (d) 05/1119/70
23. 23.📅 The digits 21031972 are a date: day, month, year. Which chunking shows the date? (a) 21/03/1972 (b) 2103/19/72 (c) 21/0319/72 (d) 210/319/72
24. 24.🔢 You want to remember the number 8215168660. Which chunked version keeps every digit in the same order? (a) 215 168 660 (b) 822 151 68660 (c) 821 516 8660 (d) 281 516 8660
25. 25.📅 The digits 07011998 are a date: day, month, year. Which chunking shows the date? (a) 0701/19/98 (b) 07/0119/98 (c) 07/01/1998 (d) 070/119/98
26. 26.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
27. 27.📅 The digits 09051966 are a date: day, month, year. Which chunking shows the date? (a) 09/0519/66 (b) 0905/19/66 (c) 090/519/66 (d) 09/05/1966
28. 28.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 19 and 47 (d) 1 and 947
29. 29.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
30. 30.📅 The digits 16031975 are a date: day, month, year. Which chunking shows the date? (a) 16/0319/75 (b) 1603/19/75 (c) 16/03/1975 (d) 160/319/75
31. 31.📅 The digits 12121991 are a date: day, month, year. Which chunking shows the date? (a) 121/219/91 (b) 1212/19/91 (c) 12/12/1991 (d) 12/1219/91
32. 32.🔢 You want to remember the number 198360065. Which chunked version keeps every digit in the same order? (a) 198 360 65 (b) 199 836 0065 (c) 193 860 065 (d) 198 360 065
33. 33.📅 The digits 04112008 are a date: day, month, year. Which chunking shows the date? (a) 0411/20/08 (b) 04/11/2008 (c) 041/120/08 (d) 04/1120/08
34. 34.📅 The digits 19112021 are a date: day, month, year. Which chunking shows the date? (a) 191/120/21 (b) 19/1120/21 (c) 1911/20/21 (d) 19/11/2021
35. 35.📅 The digits 15051969 are a date: day, month, year. Which chunking shows the date? (a) 15/05/1969 (b) 15/0519/69 (c) 1505/19/69 (d) 150/519/69
36. 36.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
37. 37.🔢 You want to remember the number 641456836. Which chunked version keeps every digit in the same order? (a) 641 456 83 (b) 614 456 836 (c) 641 456 6836 (d) 641 456 836
38. 38.📅 The digits 01082017 are a date: day, month, year. Which chunking shows the date? (a) 01/08/2017 (b) 01/0820/17 (c) 010/820/17 (d) 0108/20/17
39. 39.🔢 You want to remember the number 900660790. Which chunked version keeps every digit in the same order? (a) 900 066 0790 (b) 900 660 70 (c) 900 667 090 (d) 900 660 790
40. 40.📅 The digits 05102010 are a date: day, month, year. Which chunking shows the date? (a) 0510/20/10 (b) 051/020/10 (c) 05/10/2010 (d) 05/1020/10

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