Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 731 · 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 12-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 You want to remember the number 227412246356. Which chunked version keeps every digit in the same order? (a) 2274 1246 356 (b) 2274 1224 3656 (c) 2227 4122 46356 (d) 2274 1224 6356
3. 3.🔢 You want to remember the number 3215674072. Which chunked version keeps every digit in the same order? (a) 321 567 4072 (b) 321 566 74072 (c) 321 567 072 (d) 321 576 4072
4. 4.🔢 You want to remember the number 794512928. Which chunked version keeps every digit in the same order? (a) 794 512 98 (b) 794 512 928 (c) 794 512 9288 (d) 794 512 982
5. 5.🔢 You want to remember the number 577591211417. Which chunked version keeps every digit in the same order? (a) 5775 9121 1147 (b) 5775 9211 417 (c) 5775 9121 14417 (d) 5775 9121 1417
6. 6.🔢 A chunk is easiest to keep when it… (a) means something to you (b) has no pattern (c) changes daily (d) is very long
7. 7.📅 The digits 21091992 are a date: day, month, year. Which chunking shows the date? (a) 21/09/1992 (b) 21/0919/92 (c) 2109/19/92 (d) 210/919/92
8. 8.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
9. 9.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 and 947 (d) 1 9 4 7
10. 10.📅 The digits 06122006 are a date: day, month, year. Which chunking shows the date? (a) 06/1220/06 (b) 0612/20/06 (c) 06/12/2006 (d) 061/220/06
11. 11.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) three chunks, not ten (d) it is printed bigger
12. 12.🔢 You want to remember the number 6883718471. Which chunked version keeps every digit in the same order? (a) 668 837 18471 (b) 683 871 8471 (c) 688 371 8471 (d) 683 718 471
13. 13.🔢 You want to remember the number 481691319911. Which chunked version keeps every digit in the same order? (a) 8416 9131 9911 (b) 4816 9131 991 (c) 4816 9131 99111 (d) 4816 9131 9911
14. 14.🔢 You want to remember the number 1537805708. Which chunked version keeps every digit in the same order? (a) 153 780 5708 (b) 153 785 0708 (c) 153 780 55708 (d) 157 805 708
15. 15.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.📅 The digits 05101989 are a date: day, month, year. Which chunking shows the date? (a) 05/10/1989 (b) 051/019/89 (c) 05/1019/89 (d) 0510/19/89
17. 17.📅 The digits 27102023 are a date: day, month, year. Which chunking shows the date? (a) 2710/20/23 (b) 27/10/2023 (c) 271/020/23 (d) 27/1020/23
18. 18.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
19. 19.📅 The digits 20121975 are a date: day, month, year. Which chunking shows the date? (a) 2012/19/75 (b) 20/1219/75 (c) 20/12/1975 (d) 201/219/75
20. 20.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
21. 21.🔢 You want to remember the number 100152191. Which chunked version keeps every digit in the same order? (a) 100 121 91 (b) 010 152 191 (c) 100 152 191 (d) 100 015 2191
22. 22.📅 The digits 06091990 are a date: day, month, year. Which chunking shows the date? (a) 06/0919/90 (b) 0609/19/90 (c) 060/919/90 (d) 06/09/1990
23. 23.🔢 You want to remember the number 1523397197. Which chunked version keeps every digit in the same order? (a) 125 339 7197 (b) 152 333 97197 (c) 523 397 197 (d) 152 339 7197
24. 24.🔢 You want to remember the number 7562634200. Which chunked version keeps every digit in the same order? (a) 756 263 400 (b) 756 226 34200 (c) 765 263 4200 (d) 756 263 4200
25. 25.📅 The digits 01061995 are a date: day, month, year. Which chunking shows the date? (a) 0106/19/95 (b) 010/619/95 (c) 01/06/1995 (d) 01/0619/95
26. 26.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
27. 27.📅 The digits 04022012 are a date: day, month, year. Which chunking shows the date? (a) 04/02/2012 (b) 040/220/12 (c) 04/0220/12 (d) 0402/20/12
28. 28.🔢 You want to remember the number 886996952841. Which chunked version keeps every digit in the same order? (a) 8869 9652 841 (b) 8869 9695 2841 (c) 8869 9692 5841 (d) 8869 9695 28841
29. 29.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
30. 30.📅 The digits 06031951 are a date: day, month, year. Which chunking shows the date? (a) 060/319/51 (b) 0603/19/51 (c) 06/0319/51 (d) 06/03/1951
31. 31.🔢 You want to remember the number 2759359321. Which chunked version keeps every digit in the same order? (a) 275 935 9231 (b) 275 935 9321 (c) 759 359 321 (d) 275 935 93321
32. 32.🔢 You want to remember the number 386501209921. Which chunked version keeps every digit in the same order? (a) 3865 5012 09921 (b) 3850 1209 921 (c) 3860 5120 9921 (d) 3865 0120 9921
33. 33.📅 The digits 16091974 are a date: day, month, year. Which chunking shows the date? (a) 1609/19/74 (b) 16/09/1974 (c) 16/0919/74 (d) 160/919/74
34. 34.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures
35. 35.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
36. 36.📅 The digits 03022003 are a date: day, month, year. Which chunking shows the date? (a) 03/0220/03 (b) 030/220/03 (c) 03/02/2003 (d) 0302/20/03
37. 37.🔢 You want to remember the number 607325171. Which chunked version keeps every digit in the same order? (a) 607 325 171 (b) 607 325 1771 (c) 607 251 71 (d) 603 725 171
38. 38.📅 The digits 23092013 are a date: day, month, year. Which chunking shows the date? (a) 230/920/13 (b) 23/0920/13 (c) 23/09/2013 (d) 2309/20/13
39. 39.📅 The digits 18032002 are a date: day, month, year. Which chunking shows the date? (a) 180/320/02 (b) 1803/20/02 (c) 18/0320/02 (d) 18/03/2002
40. 40.📅 The digits 28121961 are a date: day, month, year. Which chunking shows the date? (a) 2812/19/61 (b) 28/1219/61 (c) 28/12/1961 (d) 281/219/61

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