Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 291 · 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 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
2. 2.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
3. 3.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
4. 4.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
6. 6.📅 The digits 07091965 are a date: day, month, year. Which chunking shows the date? (a) 0709/19/65 (b) 07/0919/65 (c) 070/919/65 (d) 07/09/1965
7. 7.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) changes daily (c) is very long (d) means something to you
8. 8.🔢 You want to remember the number 419038745. Which chunked version keeps every digit in the same order? (a) 190 387 45 (b) 419 038 745 (c) 149 038 745 (d) 419 038 7455
9. 9.🔢 You want to remember the number 367498919601. Which chunked version keeps every digit in the same order? (a) 3367 4989 19601 (b) 3674 8919 601 (c) 3674 8991 9601 (d) 3674 9891 9601
10. 10.🔢 You want to remember the number 154607167. Which chunked version keeps every digit in the same order? (a) 154 607 167 (b) 145 607 167 (c) 154 607 7167 (d) 154 607 16
11. 11.📅 The digits 15012019 are a date: day, month, year. Which chunking shows the date? (a) 15/01/2019 (b) 15/0120/19 (c) 1501/20/19 (d) 150/120/19
12. 12.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 19 and 47 (d) 1 and 947
13. 13.🔢 You want to remember the number 4682782862. Which chunked version keeps every digit in the same order? (a) 468 278 2862 (b) 648 278 2862 (c) 462 782 862 (d) 468 277 82862
14. 14.🔢 You want to remember the number 890696409059. Which chunked version keeps every digit in the same order? (a) 8906 9640 9059 (b) 9806 9640 9059 (c) 8990 6964 09059 (d) 8906 9640 959
15. 15.🔢 You want to remember the number 389914072. Which chunked version keeps every digit in the same order? (a) 389 914 072 (b) 398 914 072 (c) 389 991 4072 (d) 389 910 72
16. 16.📅 The digits 08081963 are a date: day, month, year. Which chunking shows the date? (a) 08/0819/63 (b) 0808/19/63 (c) 080/819/63 (d) 08/08/1963
17. 17.📅 The digits 19051996 are a date: day, month, year. Which chunking shows the date? (a) 1905/19/96 (b) 19/0519/96 (c) 19/05/1996 (d) 190/519/96
18. 18.🔢 You want to remember the number 900202828309. Which chunked version keeps every digit in the same order? (a) 9002 0288 2309 (b) 9900 2028 28309 (c) 9002 0282 309 (d) 9002 0282 8309
19. 19.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
20. 20.🔢 You want to remember the number 6819380353. Which chunked version keeps every digit in the same order? (a) 819 380 353 (b) 681 398 0353 (c) 681 193 80353 (d) 681 938 0353
21. 21.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
22. 22.🔢 You want to remember the number 548405883. Which chunked version keeps every digit in the same order? (a) 548 840 5883 (b) 484 058 83 (c) 544 805 883 (d) 548 405 883
23. 23.📅 The digits 25032019 are a date: day, month, year. Which chunking shows the date? (a) 2503/20/19 (b) 25/03/2019 (c) 25/0320/19 (d) 250/320/19
24. 24.🔢 You want to remember the number 839327202. Which chunked version keeps every digit in the same order? (a) 839 327 7202 (b) 833 272 02 (c) 839 327 202 (d) 839 237 202
25. 25.📅 The digits 03041991 are a date: day, month, year. Which chunking shows the date? (a) 03/0419/91 (b) 03/04/1991 (c) 030/419/91 (d) 0304/19/91
26. 26.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) splitting into groups (d) writing it twice
27. 27.🔢 You want to remember the number 379456322. Which chunked version keeps every digit in the same order? (a) 379 456 32 (b) 739 456 322 (c) 379 445 6322 (d) 379 456 322
28. 28.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) it is printed bigger (d) three chunks, not ten
29. 29.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
30. 30.🔢 You want to remember the number 965240920. Which chunked version keeps every digit in the same order? (a) 965 240 92 (b) 965 249 020 (c) 965 224 0920 (d) 965 240 920
31. 31.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
32. 32.📅 The digits 05061976 are a date: day, month, year. Which chunking shows the date? (a) 05/0619/76 (b) 05/06/1976 (c) 0506/19/76 (d) 050/619/76
33. 33.📅 The digits 28011955 are a date: day, month, year. Which chunking shows the date? (a) 28/0119/55 (b) 28/01/1955 (c) 280/119/55 (d) 2801/19/55
34. 34.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
35. 35.🔢 You want to remember the number 2592197783. Which chunked version keeps every digit in the same order? (a) 259 217 9783 (b) 259 921 97783 (c) 592 197 783 (d) 259 219 7783
36. 36.🔢 You want to remember the number 316611309. Which chunked version keeps every digit in the same order? (a) 316 611 309 (b) 331 661 1309 (c) 316 161 309 (d) 316 113 09
37. 37.🔢 You want to remember the number 566804801. Which chunked version keeps every digit in the same order? (a) 566 804 810 (b) 566 048 01 (c) 566 800 4801 (d) 566 804 801
38. 38.📅 The digits 20101977 are a date: day, month, year. Which chunking shows the date? (a) 201/019/77 (b) 2010/19/77 (c) 20/1019/77 (d) 20/10/1977
39. 39.🔢 You want to remember the number 230997464. Which chunked version keeps every digit in the same order? (a) 230 997 464 (b) 230 974 64 (c) 233 099 7464 (d) 230 994 764
40. 40.🔢 You want to remember the number 9901089132. Which chunked version keeps every digit in the same order? (a) 990 108 9132 (b) 990 010 89132 (c) 990 180 9132 (d) 990 189 132

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