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.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 2.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) saying it backwards (d) writing it twice
- 3.🔢 You want to remember the number 298640664. Which chunked version keeps every digit in the same order? (a) 298 640 64 (b) 298 640 664 (c) 289 640 664 (d) 298 640 6664
- 4.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 5.🔢 You want to remember the number 491028281358. Which chunked version keeps every digit in the same order? (a) 4910 2821 8358 (b) 4910 2828 1358 (c) 4102 8281 358 (d) 4491 0282 81358
- 6.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) only pictures (d) nothing at all
- 7.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 8.🔢 You want to remember the number 427235871. Which chunked version keeps every digit in the same order? (a) 427 253 871 (b) 427 235 871 (c) 422 723 5871 (d) 427 258 71
- 9.📅 The digits 24031966 are a date: day, month, year. Which chunking shows the date? (a) 240/319/66 (b) 2403/19/66 (c) 24/03/1966 (d) 24/0319/66
- 10.📅 The digits 18061981 are a date: day, month, year. Which chunking shows the date? (a) 180/619/81 (b) 18/0619/81 (c) 1806/19/81 (d) 18/06/1981
- 11.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) is very long (d) changes daily
- 12.📅 The digits 27102003 are a date: day, month, year. Which chunking shows the date? (a) 271/020/03 (b) 27/10/2003 (c) 2710/20/03 (d) 27/1020/03
- 13.🔢 You want to remember the number 2998438954. Which chunked version keeps every digit in the same order? (a) 298 438 954 (b) 299 843 8954 (c) 299 848 3954 (d) 299 884 38954
- 14.🔢 You want to remember the number 9721430184. Which chunked version keeps every digit in the same order? (a) 972 134 0184 (b) 972 143 0184 (c) 972 144 30184 (d) 972 143 018
- 15.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
- 16.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 17.📅 The digits 06051989 are a date: day, month, year. Which chunking shows the date? (a) 06/0519/89 (b) 060/519/89 (c) 0605/19/89 (d) 06/05/1989
- 18.📅 The digits 17122020 are a date: day, month, year. Which chunking shows the date? (a) 17/1220/20 (b) 171/220/20 (c) 17/12/2020 (d) 1712/20/20
- 19.🔢 You want to remember the number 519897524. Which chunked version keeps every digit in the same order? (a) 519 895 724 (b) 519 897 52 (c) 519 897 524 (d) 519 897 5524
- 20.🔢 You want to remember the number 540627921. Which chunked version keeps every digit in the same order? (a) 540 627 9211 (b) 540 627 921 (c) 504 627 921 (d) 540 627 91
- 21.📅 The digits 01072009 are a date: day, month, year. Which chunking shows the date? (a) 01/0720/09 (b) 01/07/2009 (c) 010/720/09 (d) 0107/20/09
- 22.🔢 You want to remember the number 668232046. Which chunked version keeps every digit in the same order? (a) 682 320 46 (b) 666 823 2046 (c) 686 232 046 (d) 668 232 046
- 23.🔢 You want to remember the number 463079621845. Which chunked version keeps every digit in the same order? (a) 4630 7962 11845 (b) 4607 9621 845 (c) 4630 7961 2845 (d) 4630 7962 1845
- 24.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 25.🔢 You want to remember the number 426012826. Which chunked version keeps every digit in the same order? (a) 426 012 2826 (b) 246 012 826 (c) 426 012 826 (d) 426 128 26
- 26.🔢 You want to remember the number 241650501. Which chunked version keeps every digit in the same order? (a) 241 560 501 (b) 241 165 0501 (c) 241 650 501 (d) 241 655 01
- 27.🔢 You want to remember the number 575380604345. Which chunked version keeps every digit in the same order? (a) 5753 0860 4345 (b) 5575 3806 04345 (c) 5753 8060 4345 (d) 5753 8060 435
- 28.🔢 You want to remember the number 458123460. Which chunked version keeps every digit in the same order? (a) 581 234 60 (b) 458 123 460 (c) 458 123 4600 (d) 458 123 640
- 29.🔢 You want to remember the number 448348473. Which chunked version keeps every digit in the same order? (a) 448 348 473 (b) 444 834 8473 (c) 483 484 73 (d) 443 848 473
- 30.📅 The digits 11122009 are a date: day, month, year. Which chunking shows the date? (a) 11/1220/09 (b) 111/220/09 (c) 1112/20/09 (d) 11/12/2009
- 31.📅 The digits 28022011 are a date: day, month, year. Which chunking shows the date? (a) 280/220/11 (b) 2802/20/11 (c) 28/0220/11 (d) 28/02/2011
- 32.🔢 You want to remember the number 436349383511. Which chunked version keeps every digit in the same order? (a) 4363 4938 3511 (b) 4364 9383 511 (c) 4363 4983 3511 (d) 4363 4938 35111
- 33.🔢 You want to remember the number 489029081. Which chunked version keeps every digit in the same order? (a) 480 929 081 (b) 489 029 08 (c) 448 902 9081 (d) 489 029 081
- 34.🔢 You want to remember the number 651740495. Which chunked version keeps every digit in the same order? (a) 651 740 495 (b) 651 704 495 (c) 517 404 95 (d) 655 174 0495
- 35.📅 The digits 03071992 are a date: day, month, year. Which chunking shows the date? (a) 03/07/1992 (b) 0307/19/92 (c) 03/0719/92 (d) 030/719/92
- 36.📅 The digits 21112022 are a date: day, month, year. Which chunking shows the date? (a) 211/120/22 (b) 21/1120/22 (c) 2111/20/22 (d) 21/11/2022
- 37.📅 The digits 27081955 are a date: day, month, year. Which chunking shows the date? (a) 27/0819/55 (b) 2708/19/55 (c) 27/08/1955 (d) 270/819/55
- 38.🔢 You want to remember the number 321805133017. Which chunked version keeps every digit in the same order? (a) 3210 8513 3017 (b) 3218 0513 3017 (c) 3280 5133 017 (d) 3221 8051 33017
- 39.📅 The digits 26051995 are a date: day, month, year. Which chunking shows the date? (a) 26/0519/95 (b) 260/519/95 (c) 2605/19/95 (d) 26/05/1995
- 40.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
Answer key
- 5
- splitting into groups
- 298 640 664
- 8
- 4910 2828 1358
- numbers and letter lists
- 2
- 427 235 871
- 24/03/1966
- 18/06/1981
- means something to you
- 27/10/2003
- 299 843 8954
- 972 143 0184
- three chunks, not ten
- 2
- 06/05/1989
- 17/12/2020
- 519 897 524
- 540 627 921
- 01/07/2009
- 668 232 046
- 4630 7962 1845
- 5
- 426 012 826
- 241 650 501
- 5753 8060 4345
- 458 123 460
- 448 348 473
- 11/12/2009
- 28/02/2011
- 4363 4938 3511
- 489 029 081
- 651 740 495
- 03/07/1992
- 21/11/2022
- 27/08/1955
- 3218 0513 3017
- 26/05/1995
- 9
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