Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 553 · 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.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
3. 3.📅 The digits 01022005 are a date: day, month, year. Which chunking shows the date? (a) 0102/20/05 (b) 01/02/2005 (c) 01/0220/05 (d) 010/220/05
4. 4.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
5. 5.🔢 You want to remember the number 647570379. Which chunked version keeps every digit in the same order? (a) 647 570 3799 (b) 647 570 379 (c) 674 570 379 (d) 647 570 37
6. 6.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
7. 7.🔢 You want to remember the number 240005455. Which chunked version keeps every digit in the same order? (a) 240 005 545 (b) 200 054 55 (c) 240 005 455 (d) 240 005 4455
8. 8.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 1 9 4 7 (d) 194 and 7
9. 9.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) only pictures (d) numbers and letter lists
10. 10.🔢 What is chunking? (a) saying it backwards (b) splitting into groups (c) writing it twice (d) reading very fast
11. 11.📅 The digits 08101994 are a date: day, month, year. Which chunking shows the date? (a) 08/1019/94 (b) 0810/19/94 (c) 081/019/94 (d) 08/10/1994
12. 12.🔢 A chunk is easiest to keep when it… (a) means something to you (b) is very long (c) changes daily (d) has no pattern
13. 13.📅 The digits 08121969 are a date: day, month, year. Which chunking shows the date? (a) 0812/19/69 (b) 081/219/69 (c) 08/1219/69 (d) 08/12/1969
14. 14.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) three chunks, not ten (d) it has fewer digits
15. 15.📅 The digits 20012018 are a date: day, month, year. Which chunking shows the date? (a) 20/0120/18 (b) 20/01/2018 (c) 2001/20/18 (d) 200/120/18
16. 16.🔢 You want to remember the number 870109678. Which chunked version keeps every digit in the same order? (a) 870 109 678 (b) 871 096 78 (c) 870 109 768 (d) 870 109 6788
17. 17.🔢 You want to remember the number 1642584218. Which chunked version keeps every digit in the same order? (a) 164 425 84218 (b) 164 258 418 (c) 164 258 4218 (d) 164 528 4218
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.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
20. 20.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
21. 21.🔢 You want to remember the number 670173314. Which chunked version keeps every digit in the same order? (a) 670 173 341 (b) 670 173 314 (c) 667 017 3314 (d) 670 173 31
22. 22.📅 The digits 01091952 are a date: day, month, year. Which chunking shows the date? (a) 01/09/1952 (b) 01/0919/52 (c) 0109/19/52 (d) 010/919/52
23. 23.🔢 You want to remember the number 538244667. Which chunked version keeps every digit in the same order? (a) 538 244 667 (b) 538 244 676 (c) 538 244 67 (d) 533 824 4667
24. 24.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
25. 25.📅 The digits 08042025 are a date: day, month, year. Which chunking shows the date? (a) 080/420/25 (b) 08/04/2025 (c) 08/0420/25 (d) 0804/20/25
26. 26.📅 The digits 26061960 are a date: day, month, year. Which chunking shows the date? (a) 260/619/60 (b) 26/06/1960 (c) 2606/19/60 (d) 26/0619/60
27. 27.🔢 You want to remember the number 597663250125. Which chunked version keeps every digit in the same order? (a) 5976 6325 1025 (b) 5976 6325 0125 (c) 5976 3250 125 (d) 5976 6632 50125
28. 28.📅 The digits 26071995 are a date: day, month, year. Which chunking shows the date? (a) 260/719/95 (b) 2607/19/95 (c) 26/07/1995 (d) 26/0719/95
29. 29.📅 The digits 28081964 are a date: day, month, year. Which chunking shows the date? (a) 280/819/64 (b) 28/08/1964 (c) 28/0819/64 (d) 2808/19/64
30. 30.📅 The digits 25102021 are a date: day, month, year. Which chunking shows the date? (a) 251/020/21 (b) 2510/20/21 (c) 25/1020/21 (d) 25/10/2021
31. 31.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
32. 32.📅 The digits 02051978 are a date: day, month, year. Which chunking shows the date? (a) 0205/19/78 (b) 02/05/1978 (c) 02/0519/78 (d) 020/519/78
33. 33.🔢 You want to remember the number 217620031. Which chunked version keeps every digit in the same order? (a) 276 200 31 (b) 217 620 031 (c) 217 620 013 (d) 217 620 0311
34. 34.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
35. 35.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
36. 36.📅 The digits 13122013 are a date: day, month, year. Which chunking shows the date? (a) 1312/20/13 (b) 131/220/13 (c) 13/12/2013 (d) 13/1220/13
37. 37.🔢 You want to remember the number 250183611. Which chunked version keeps every digit in the same order? (a) 250 186 11 (b) 520 183 611 (c) 255 018 3611 (d) 250 183 611
38. 38.📅 The digits 26091976 are a date: day, month, year. Which chunking shows the date? (a) 2609/19/76 (b) 260/919/76 (c) 26/0919/76 (d) 26/09/1976
39. 39.🔢 You want to remember the number 412061201. Which chunked version keeps every digit in the same order? (a) 412 061 2201 (b) 410 261 201 (c) 412 061 201 (d) 412 061 01
40. 40.🔢 You want to remember the number 3270265155. Which chunked version keeps every digit in the same order? (a) 270 265 155 (b) 327 026 55155 (c) 327 026 1555 (d) 327 026 5155

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