Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 310 · 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 23071995 are a date: day, month, year. Which chunking shows the date? (a) 23/07/1995 (b) 23/0719/95 (c) 2307/19/95 (d) 230/719/95
2. 2.📅 The digits 21111996 are a date: day, month, year. Which chunking shows the date? (a) 2111/19/96 (b) 21/1119/96 (c) 211/119/96 (d) 21/11/1996
3. 3.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
4. 4.📅 The digits 21011968 are a date: day, month, year. Which chunking shows the date? (a) 2101/19/68 (b) 21/0119/68 (c) 210/119/68 (d) 21/01/1968
5. 5.📅 The digits 07022020 are a date: day, month, year. Which chunking shows the date? (a) 0702/20/20 (b) 070/220/20 (c) 07/0220/20 (d) 07/02/2020
6. 6.📅 The digits 15041980 are a date: day, month, year. Which chunking shows the date? (a) 15/0419/80 (b) 1504/19/80 (c) 15/04/1980 (d) 150/419/80
7. 7.🔢 You want to remember the number 2217021129. Which chunked version keeps every digit in the same order? (a) 217 021 129 (b) 221 702 1129 (c) 221 701 2129 (d) 222 170 21129
8. 8.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 1 9 4 7 (c) 194 and 7 (d) 19 and 47
9. 9.🔢 You want to remember the number 470251600. Which chunked version keeps every digit in the same order? (a) 470 251 600 (b) 470 256 00 (c) 470 225 1600 (d) 740 251 600
10. 10.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
11. 11.🔢 You want to remember the number 441619065. Which chunked version keeps every digit in the same order? (a) 441 619 056 (b) 441 619 65 (c) 441 619 065 (d) 444 161 9065
12. 12.📅 The digits 04122012 are a date: day, month, year. Which chunking shows the date? (a) 04/1220/12 (b) 041/220/12 (c) 04/12/2012 (d) 0412/20/12
13. 13.📅 The digits 04011996 are a date: day, month, year. Which chunking shows the date? (a) 0401/19/96 (b) 040/119/96 (c) 04/0119/96 (d) 04/01/1996
14. 14.🔢 You want to remember the number 927418135. Which chunked version keeps every digit in the same order? (a) 974 181 35 (b) 297 418 135 (c) 927 418 1355 (d) 927 418 135
15. 15.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
16. 16.📅 The digits 25032025 are a date: day, month, year. Which chunking shows the date? (a) 2503/20/25 (b) 25/03/2025 (c) 250/320/25 (d) 25/0320/25
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 5709312613. Which chunked version keeps every digit in the same order? (a) 570 931 6213 (b) 709 312 613 (c) 570 931 26613 (d) 570 931 2613
19. 19.🔢 Chunking works for… (a) numbers and letter lists (b) nothing at all (c) only pictures (d) only numbers
20. 20.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) it has fewer digits (d) three chunks, not ten
21. 21.📅 The digits 25081993 are a date: day, month, year. Which chunking shows the date? (a) 25/08/1993 (b) 250/819/93 (c) 2508/19/93 (d) 25/0819/93
22. 22.🔢 You want to remember the number 229800558. Which chunked version keeps every digit in the same order? (a) 298 005 58 (b) 229 800 585 (c) 229 800 0558 (d) 229 800 558
23. 23.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
24. 24.🔢 You want to remember the number 425743537. Which chunked version keeps every digit in the same order? (a) 425 734 537 (b) 425 743 537 (c) 425 743 53 (d) 425 743 5337
25. 25.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
26. 26.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
27. 27.📅 The digits 23012013 are a date: day, month, year. Which chunking shows the date? (a) 2301/20/13 (b) 23/01/2013 (c) 230/120/13 (d) 23/0120/13
28. 28.📅 The digits 27052012 are a date: day, month, year. Which chunking shows the date? (a) 270/520/12 (b) 27/0520/12 (c) 2705/20/12 (d) 27/05/2012
29. 29.🔢 You want to remember the number 4822024150. Which chunked version keeps every digit in the same order? (a) 482 202 410 (b) 488 220 24150 (c) 428 202 4150 (d) 482 202 4150
30. 30.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
31. 31.📅 The digits 18112018 are a date: day, month, year. Which chunking shows the date? (a) 18/1120/18 (b) 1811/20/18 (c) 181/120/18 (d) 18/11/2018
32. 32.📅 The digits 06072021 are a date: day, month, year. Which chunking shows the date? (a) 0607/20/21 (b) 060/720/21 (c) 06/07/2021 (d) 06/0720/21
33. 33.🔢 You want to remember the number 2209148590. Which chunked version keeps every digit in the same order? (a) 220 991 48590 (b) 220 914 5890 (c) 220 914 8590 (d) 229 148 590
34. 34.🔢 You want to remember the number 8504319894. Which chunked version keeps every digit in the same order? (a) 504 319 894 (b) 850 413 9894 (c) 850 431 9894 (d) 850 431 19894
35. 35.📅 The digits 06061964 are a date: day, month, year. Which chunking shows the date? (a) 06/06/1964 (b) 06/0619/64 (c) 060/619/64 (d) 0606/19/64
36. 36.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) means something to you (d) has no pattern
37. 37.🔢 You want to remember the number 280565138. Which chunked version keeps every digit in the same order? (a) 280 565 138 (b) 280 565 318 (c) 280 565 38 (d) 280 565 1138
38. 38.📅 The digits 21061969 are a date: day, month, year. Which chunking shows the date? (a) 2106/19/69 (b) 21/0619/69 (c) 21/06/1969 (d) 210/619/69
39. 39.🔢 You want to remember the number 437197089405. Which chunked version keeps every digit in the same order? (a) 4371 9709 8405 (b) 4371 9708 94055 (c) 4371 9708 9405 (d) 4371 9708 405
40. 40.📅 The digits 10011996 are a date: day, month, year. Which chunking shows the date? (a) 1001/19/96 (b) 10/01/1996 (c) 10/0119/96 (d) 100/119/96

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