Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 919 · 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 9-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 You want to remember the number 311793779. Which chunked version keeps every digit in the same order? (a) 311 797 379 (b) 311 793 79 (c) 331 179 3779 (d) 311 793 779
3. 3.🔢 You want to remember the number 602546774. Which chunked version keeps every digit in the same order? (a) 600 254 6774 (b) 602 546 774 (c) 625 467 74 (d) 620 546 774
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 310343163. Which chunked version keeps every digit in the same order? (a) 310 341 63 (b) 310 034 3163 (c) 310 341 363 (d) 310 343 163
6. 6.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) changes daily (d) means something to you
7. 7.📅 The digits 22042021 are a date: day, month, year. Which chunking shows the date? (a) 220/420/21 (b) 2204/20/21 (c) 22/0420/21 (d) 22/04/2021
8. 8.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
9. 9.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
10. 10.📅 The digits 16111995 are a date: day, month, year. Which chunking shows the date? (a) 16/11/1995 (b) 16/1119/95 (c) 1611/19/95 (d) 161/119/95
11. 11.🔢 You want to remember the number 375810341399. Which chunked version keeps every digit in the same order? (a) 3758 0134 1399 (b) 3758 1034 1399 (c) 3581 0341 399 (d) 3755 8103 41399
12. 12.🔢 You want to remember the number 392076450797. Which chunked version keeps every digit in the same order? (a) 3992 0764 50797 (b) 3920 7654 0797 (c) 3920 7645 0797 (d) 3927 6450 797
13. 13.📅 The digits 03042023 are a date: day, month, year. Which chunking shows the date? (a) 03/04/2023 (b) 030/420/23 (c) 0304/20/23 (d) 03/0420/23
14. 14.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
15. 15.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) writing it twice (d) splitting into groups
16. 16.🔢 You want to remember the number 5293946209. Which chunked version keeps every digit in the same order? (a) 523 946 209 (b) 529 394 62099 (c) 529 394 6209 (d) 523 994 6209
17. 17.📅 The digits 03041960 are a date: day, month, year. Which chunking shows the date? (a) 030/419/60 (b) 03/04/1960 (c) 03/0419/60 (d) 0304/19/60
18. 18.🔢 You want to remember the number 483915922198. Which chunked version keeps every digit in the same order? (a) 4839 1522 198 (b) 4893 1592 2198 (c) 4839 9159 22198 (d) 4839 1592 2198
19. 19.📅 The digits 19071950 are a date: day, month, year. Which chunking shows the date? (a) 190/719/50 (b) 1907/19/50 (c) 19/07/1950 (d) 19/0719/50
20. 20.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
21. 21.📅 The digits 15081993 are a date: day, month, year. Which chunking shows the date? (a) 1508/19/93 (b) 15/0819/93 (c) 15/08/1993 (d) 150/819/93
22. 22.📅 The digits 01041966 are a date: day, month, year. Which chunking shows the date? (a) 0104/19/66 (b) 01/0419/66 (c) 010/419/66 (d) 01/04/1966
23. 23.🔢 You want to remember the number 1640985817. Which chunked version keeps every digit in the same order? (a) 640 985 817 (b) 164 409 85817 (c) 164 098 8517 (d) 164 098 5817
24. 24.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
25. 25.🔢 You want to remember the number 728011251862. Which chunked version keeps every digit in the same order? (a) 7280 1122 51862 (b) 7280 1251 862 (c) 7280 1125 1682 (d) 7280 1125 1862
26. 26.📅 The digits 06031968 are a date: day, month, year. Which chunking shows the date? (a) 06/0319/68 (b) 060/319/68 (c) 0603/19/68 (d) 06/03/1968
27. 27.🔢 You want to remember the number 1295533043. Which chunked version keeps every digit in the same order? (a) 125 533 043 (b) 129 555 33043 (c) 129 553 3043 (d) 219 553 3043
28. 28.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
29. 29.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
30. 30.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 9 4 7 (c) 1 and 947 (d) 194 and 7
31. 31.🔢 You want to remember the number 112720312. Which chunked version keeps every digit in the same order? (a) 111 272 0312 (b) 112 720 12 (c) 112 720 312 (d) 117 220 312
32. 32.📅 The digits 10051962 are a date: day, month, year. Which chunking shows the date? (a) 1005/19/62 (b) 10/05/1962 (c) 100/519/62 (d) 10/0519/62
33. 33.🔢 You want to remember the number 916374174. Which chunked version keeps every digit in the same order? (a) 991 637 4174 (b) 916 374 174 (c) 916 741 74 (d) 196 374 174
34. 34.🔢 You want to remember the number 215805650019. Which chunked version keeps every digit in the same order? (a) 2158 0565 0019 (b) 2158 0550 019 (c) 2158 0565 0091 (d) 2158 0565 00199
35. 35.🔢 You want to remember the number 135216532. Which chunked version keeps every digit in the same order? (a) 135 216 32 (b) 135 216 532 (c) 135 126 532 (d) 113 521 6532
36. 36.📅 The digits 13122012 are a date: day, month, year. Which chunking shows the date? (a) 1312/20/12 (b) 131/220/12 (c) 13/1220/12 (d) 13/12/2012
37. 37.📅 The digits 23112002 are a date: day, month, year. Which chunking shows the date? (a) 23/11/2002 (b) 23/1120/02 (c) 2311/20/02 (d) 231/120/02
38. 38.📅 The digits 09062003 are a date: day, month, year. Which chunking shows the date? (a) 09/06/2003 (b) 09/0620/03 (c) 090/620/03 (d) 0906/20/03
39. 39.🔢 You want to remember the number 5061536295. Which chunked version keeps every digit in the same order? (a) 506 536 295 (b) 500 615 36295 (c) 506 153 6259 (d) 506 153 6295
40. 40.📅 The digits 13031990 are a date: day, month, year. Which chunking shows the date? (a) 1303/19/90 (b) 13/03/1990 (c) 13/0319/90 (d) 130/319/90

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