Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 438 · 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.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
2. 2.🔢 You want to remember the number 763302710713. Which chunked version keeps every digit in the same order? (a) 7633 0270 1713 (b) 7633 0271 0713 (c) 7633 0271 073 (d) 7633 0027 10713
3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it has fewer digits (d) it is a smaller number
4. 4.🔢 You want to remember the number 375735563. Which chunked version keeps every digit in the same order? (a) 375 735 563 (b) 375 773 5563 (c) 375 735 63 (d) 375 753 563
5. 5.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
6. 6.📅 The digits 21061971 are a date: day, month, year. Which chunking shows the date? (a) 21/0619/71 (b) 2106/19/71 (c) 210/619/71 (d) 21/06/1971
7. 7.📅 The digits 01101986 are a date: day, month, year. Which chunking shows the date? (a) 011/019/86 (b) 01/10/1986 (c) 0110/19/86 (d) 01/1019/86
8. 8.📅 The digits 04032016 are a date: day, month, year. Which chunking shows the date? (a) 0403/20/16 (b) 04/0320/16 (c) 04/03/2016 (d) 040/320/16
9. 9.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
10. 10.📅 The digits 11101952 are a date: day, month, year. Which chunking shows the date? (a) 1110/19/52 (b) 11/1019/52 (c) 11/10/1952 (d) 111/019/52
11. 11.📅 The digits 03041954 are a date: day, month, year. Which chunking shows the date? (a) 0304/19/54 (b) 03/04/1954 (c) 03/0419/54 (d) 030/419/54
12. 12.🔢 You want to remember the number 219932752. Which chunked version keeps every digit in the same order? (a) 219 932 52 (b) 129 932 752 (c) 219 932 752 (d) 219 993 2752
13. 13.🔢 A chunk is easiest to keep when it… (a) means something to you (b) has no pattern (c) is very long (d) changes daily
14. 14.📅 The digits 21041981 are a date: day, month, year. Which chunking shows the date? (a) 21/0419/81 (b) 21/04/1981 (c) 2104/19/81 (d) 210/419/81
15. 15.📅 The digits 27051978 are a date: day, month, year. Which chunking shows the date? (a) 2705/19/78 (b) 27/05/1978 (c) 27/0519/78 (d) 270/519/78
16. 16.📅 The digits 12021983 are a date: day, month, year. Which chunking shows the date? (a) 12/02/1983 (b) 1202/19/83 (c) 12/0219/83 (d) 120/219/83
17. 17.🔢 You want to remember the number 170351381632. Which chunked version keeps every digit in the same order? (a) 1703 5138 132 (b) 1730 5138 1632 (c) 1703 5138 1632 (d) 1703 5133 81632
18. 18.🔢 You want to remember the number 757472321. Which chunked version keeps every digit in the same order? (a) 775 472 321 (b) 757 472 3221 (c) 757 472 321 (d) 574 723 21
19. 19.🔢 You want to remember the number 6192276209. Which chunked version keeps every digit in the same order? (a) 619 226 209 (b) 612 927 6209 (c) 619 227 62099 (d) 619 227 6209
20. 20.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
21. 21.📅 The digits 04102018 are a date: day, month, year. Which chunking shows the date? (a) 041/020/18 (b) 04/1020/18 (c) 0410/20/18 (d) 04/10/2018
22. 22.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
23. 23.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) splitting into groups (d) saying it backwards
24. 24.📅 The digits 13111999 are a date: day, month, year. Which chunking shows the date? (a) 131/119/99 (b) 1311/19/99 (c) 13/11/1999 (d) 13/1119/99
25. 25.📅 The digits 19071960 are a date: day, month, year. Which chunking shows the date? (a) 19/0719/60 (b) 19/07/1960 (c) 1907/19/60 (d) 190/719/60
26. 26.📅 The digits 05092001 are a date: day, month, year. Which chunking shows the date? (a) 050/920/01 (b) 05/0920/01 (c) 05/09/2001 (d) 0509/20/01
27. 27.🔢 You want to remember the number 170477179228. Which chunked version keeps every digit in the same order? (a) 1704 7771 9228 (b) 1747 7179 228 (c) 1704 7717 9228 (d) 1704 7717 92288
28. 28.🔢 You want to remember the number 800452519. Which chunked version keeps every digit in the same order? (a) 800 452 519 (b) 800 452 159 (c) 800 455 2519 (d) 800 452 59
29. 29.🔢 You want to remember the number 5697039401. Which chunked version keeps every digit in the same order? (a) 569 970 39401 (b) 569 703 4901 (c) 597 039 401 (d) 569 703 9401
30. 30.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
31. 31.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
32. 32.🔢 You want to remember the number 672088538. Which chunked version keeps every digit in the same order? (a) 672 088 5388 (b) 672 088 583 (c) 672 885 38 (d) 672 088 538
33. 33.🔢 You want to remember the number 847030915. Which chunked version keeps every digit in the same order? (a) 847 033 0915 (b) 847 300 915 (c) 847 030 915 (d) 870 309 15
34. 34.🔢 You want to remember the number 7575186395. Which chunked version keeps every digit in the same order? (a) 757 186 395 (b) 755 751 86395 (c) 757 518 6395 (d) 757 158 6395
35. 35.📅 The digits 04061970 are a date: day, month, year. Which chunking shows the date? (a) 04/0619/70 (b) 04/06/1970 (c) 040/619/70 (d) 0406/19/70
36. 36.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
37. 37.📅 The digits 22011998 are a date: day, month, year. Which chunking shows the date? (a) 2201/19/98 (b) 220/119/98 (c) 22/01/1998 (d) 22/0119/98
38. 38.📅 The digits 01041998 are a date: day, month, year. Which chunking shows the date? (a) 010/419/98 (b) 0104/19/98 (c) 01/04/1998 (d) 01/0419/98
39. 39.🔢 You want to remember the number 8558541700. Which chunked version keeps every digit in the same order? (a) 855 845 1700 (b) 885 585 41700 (c) 855 854 1700 (d) 858 541 700
40. 40.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?

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