Mnemonics Worksheet: Chunking Numbers
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.
NameDateTime takenScore ___ / 40
- 1.📅 The digits 21061962 are a date: day, month, year. Which chunking shows the date? (a) 210/619/62 (b) 21/0619/62 (c) 2106/19/62 (d) 21/06/1962
- 2.📅 The digits 09031992 are a date: day, month, year. Which chunking shows the date? (a) 09/0319/92 (b) 0903/19/92 (c) 090/319/92 (d) 09/03/1992
- 3.📅 The digits 23092016 are a date: day, month, year. Which chunking shows the date? (a) 23/09/2016 (b) 2309/20/16 (c) 23/0920/16 (d) 230/920/16
- 4.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 5.🔢 You want to remember the number 3610190102. Which chunked version keeps every digit in the same order? (a) 361 019 01022 (b) 361 019 0102 (c) 361 019 012 (d) 361 019 1002
- 6.🔢 You want to remember the number 499106874. Which chunked version keeps every digit in the same order? (a) 499 106 87 (b) 499 910 6874 (c) 499 106 847 (d) 499 106 874
- 7.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 8.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 9.🔢 You want to remember the number 7244022260. Which chunked version keeps every digit in the same order? (a) 724 402 2260 (b) 724 402 22660 (c) 724 420 2260 (d) 724 022 260
- 10.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 19 and 47 (c) 1 and 947 (d) 1 9 4 7
- 11.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) means something to you (d) is very long
- 12.🔢 You want to remember the number 472217621168. Which chunked version keeps every digit in the same order? (a) 4722 1762 168 (b) 4722 1762 1618 (c) 4722 1776 21168 (d) 4722 1762 1168
- 13.📅 The digits 13021961 are a date: day, month, year. Which chunking shows the date? (a) 130/219/61 (b) 13/0219/61 (c) 13/02/1961 (d) 1302/19/61
- 14.🔢 You want to remember the number 590385979. Which chunked version keeps every digit in the same order? (a) 509 385 979 (b) 590 038 5979 (c) 590 385 99 (d) 590 385 979
- 15.📅 The digits 02092024 are a date: day, month, year. Which chunking shows the date? (a) 02/09/2024 (b) 0209/20/24 (c) 020/920/24 (d) 02/0920/24
- 16.🔢 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
- 17.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 18.📅 The digits 12091999 are a date: day, month, year. Which chunking shows the date? (a) 120/919/99 (b) 12/0919/99 (c) 1209/19/99 (d) 12/09/1999
- 19.🔢 You want to remember the number 368544412. Which chunked version keeps every digit in the same order? (a) 368 544 12 (b) 368 544 412 (c) 368 544 4412 (d) 638 544 412
- 20.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) reading very fast (d) writing it twice
- 21.🔢 You want to remember the number 171703623. Which chunked version keeps every digit in the same order? (a) 171 770 3623 (b) 711 703 623 (c) 171 706 23 (d) 171 703 623
- 22.🔢 You want to remember the number 319720291. Which chunked version keeps every digit in the same order? (a) 319 720 219 (b) 319 720 21 (c) 319 720 291 (d) 319 720 2291
- 23.🔢 You want to remember the number 469813567. Which chunked version keeps every digit in the same order? (a) 469 813 5677 (b) 469 813 56 (c) 469 813 657 (d) 469 813 567
- 24.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 25.🔢 You want to remember the number 164307937. Which chunked version keeps every digit in the same order? (a) 166 430 7937 (b) 164 307 973 (c) 163 079 37 (d) 164 307 937
- 26.📅 The digits 17011983 are a date: day, month, year. Which chunking shows the date? (a) 170/119/83 (b) 17/0119/83 (c) 1701/19/83 (d) 17/01/1983
- 27.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only numbers (d) only pictures
- 28.📅 The digits 20081983 are a date: day, month, year. Which chunking shows the date? (a) 2008/19/83 (b) 20/0819/83 (c) 20/08/1983 (d) 200/819/83
- 29.🔢 You want to remember the number 258695414062. Which chunked version keeps every digit in the same order? (a) 2586 9541 4602 (b) 2586 9541 4062 (c) 2586 9544 14062 (d) 2586 9541 406
- 30.📅 The digits 25061963 are a date: day, month, year. Which chunking shows the date? (a) 25/06/1963 (b) 250/619/63 (c) 25/0619/63 (d) 2506/19/63
- 31.🔢 You want to remember the number 500552403709. Which chunked version keeps every digit in the same order? (a) 5005 5240 709 (b) 5005 5240 3790 (c) 5005 5240 3709 (d) 5005 5240 03709
- 32.🔢 You want to remember the number 5227049306. Which chunked version keeps every digit in the same order? (a) 522 740 9306 (b) 522 770 49306 (c) 522 704 936 (d) 522 704 9306
- 33.🔢 You want to remember the number 761290788. Which chunked version keeps every digit in the same order? (a) 761 290 788 (b) 761 297 88 (c) 761 290 7888 (d) 761 290 878
- 34.📅 The digits 06051965 are a date: day, month, year. Which chunking shows the date? (a) 06/05/1965 (b) 0605/19/65 (c) 060/519/65 (d) 06/0519/65
- 35.🔢 You want to remember the number 748425042477. Which chunked version keeps every digit in the same order? (a) 7482 5042 477 (b) 7484 2540 2477 (c) 7484 2504 2477 (d) 7484 2504 42477
- 36.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 37.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 38.📅 The digits 12111990 are a date: day, month, year. Which chunking shows the date? (a) 12/11/1990 (b) 12/1119/90 (c) 121/119/90 (d) 1211/19/90
- 39.🔢 You want to remember the number 107390191. Which chunked version keeps every digit in the same order? (a) 107 390 911 (b) 107 399 0191 (c) 107 390 191 (d) 107 391 91
- 40.🔢 You want to remember the number 5741150286. Which chunked version keeps every digit in the same order? (a) 574 151 0286 (b) 541 150 286 (c) 574 111 50286 (d) 574 115 0286
Answer key
- 21/06/1962
- 09/03/1992
- 23/09/2016
- 8
- 361 019 0102
- 499 106 874
- 5
- 3
- 724 402 2260
- 19 and 47
- means something to you
- 4722 1762 1168
- 13/02/1961
- 590 385 979
- 02/09/2024
- three chunks, not ten
- 5
- 12/09/1999
- 368 544 412
- splitting into groups
- 171 703 623
- 319 720 291
- 469 813 567
- 7
- 164 307 937
- 17/01/1983
- numbers and letter lists
- 20/08/1983
- 2586 9541 4062
- 25/06/1963
- 5005 5240 3709
- 522 704 9306
- 761 290 788
- 06/05/1965
- 7484 2504 2477
- 2
- 5
- 12/11/1990
- 107 390 191
- 574 115 0286
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