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 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 2.📅 The digits 28071950 are a date: day, month, year. Which chunking shows the date? (a) 280/719/50 (b) 2807/19/50 (c) 28/07/1950 (d) 28/0719/50
- 3.🔢 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
- 4.🔢 You want to remember the number 6821213062. Which chunked version keeps every digit in the same order? (a) 682 211 3062 (b) 688 212 13062 (c) 682 121 062 (d) 682 121 3062
- 5.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
- 6.📅 The digits 25111954 are a date: day, month, year. Which chunking shows the date? (a) 2511/19/54 (b) 25/1119/54 (c) 251/119/54 (d) 25/11/1954
- 7.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 8.📅 The digits 09022016 are a date: day, month, year. Which chunking shows the date? (a) 090/220/16 (b) 0902/20/16 (c) 09/0220/16 (d) 09/02/2016
- 9.🔢 Chunking works for… (a) only pictures (b) only numbers (c) numbers and letter lists (d) nothing at all
- 10.🔢 You want to remember the number 205501491391. Which chunked version keeps every digit in the same order? (a) 0255 0149 1391 (b) 2055 0149 91391 (c) 2055 0191 391 (d) 2055 0149 1391
- 11.📅 The digits 06071989 are a date: day, month, year. Which chunking shows the date? (a) 0607/19/89 (b) 060/719/89 (c) 06/0719/89 (d) 06/07/1989
- 12.📅 The digits 25021951 are a date: day, month, year. Which chunking shows the date? (a) 250/219/51 (b) 25/0219/51 (c) 2502/19/51 (d) 25/02/1951
- 13.📅 The digits 14021995 are a date: day, month, year. Which chunking shows the date? (a) 140/219/95 (b) 1402/19/95 (c) 14/02/1995 (d) 14/0219/95
- 14.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 15.🔢 You want to remember the number 166710272967. Which chunked version keeps every digit in the same order? (a) 1667 1027 2967 (b) 1676 1027 2967 (c) 1667 1027 29677 (d) 1667 1027 297
- 16.📅 The digits 14062015 are a date: day, month, year. Which chunking shows the date? (a) 14/0620/15 (b) 1406/20/15 (c) 14/06/2015 (d) 140/620/15
- 17.🔢 You want to remember the number 183960866. Which chunked version keeps every digit in the same order? (a) 189 608 66 (b) 183 690 866 (c) 183 960 866 (d) 183 960 0866
- 18.🔢 You want to remember the number 269280025. Which chunked version keeps every digit in the same order? (a) 292 800 25 (b) 629 280 025 (c) 269 280 0025 (d) 269 280 025
- 19.📅 The digits 04072000 are a date: day, month, year. Which chunking shows the date? (a) 04/0720/00 (b) 040/720/00 (c) 0407/20/00 (d) 04/07/2000
- 20.📅 The digits 20011955 are a date: day, month, year. Which chunking shows the date? (a) 200/119/55 (b) 2001/19/55 (c) 20/0119/55 (d) 20/01/1955
- 21.📅 The digits 24072004 are a date: day, month, year. Which chunking shows the date? (a) 24/0720/04 (b) 240/720/04 (c) 2407/20/04 (d) 24/07/2004
- 22.🔢 You want to remember the number 727376461. Which chunked version keeps every digit in the same order? (a) 727 367 461 (b) 727 764 61 (c) 727 376 6461 (d) 727 376 461
- 23.🔢 You want to remember the number 716586449605. Which chunked version keeps every digit in the same order? (a) 7165 8644 9605 (b) 7165 6449 605 (c) 7165 8644 96055 (d) 7156 8644 9605
- 24.📅 The digits 24071990 are a date: day, month, year. Which chunking shows the date? (a) 24/07/1990 (b) 240/719/90 (c) 24/0719/90 (d) 2407/19/90
- 25.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 26.📅 The digits 06041951 are a date: day, month, year. Which chunking shows the date? (a) 06/0419/51 (b) 060/419/51 (c) 0604/19/51 (d) 06/04/1951
- 27.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 28.📅 The digits 19021994 are a date: day, month, year. Which chunking shows the date? (a) 19/02/1994 (b) 190/219/94 (c) 1902/19/94 (d) 19/0219/94
- 29.🔢 You want to remember the number 230311271. Which chunked version keeps every digit in the same order? (a) 230 311 271 (b) 320 311 271 (c) 230 311 71 (d) 230 331 1271
- 30.📅 The digits 04061988 are a date: day, month, year. Which chunking shows the date? (a) 04/06/1988 (b) 04/0619/88 (c) 040/619/88 (d) 0406/19/88
- 31.📅 The digits 12032021 are a date: day, month, year. Which chunking shows the date? (a) 12/0320/21 (b) 1203/20/21 (c) 120/320/21 (d) 12/03/2021
- 32.📅 The digits 27031988 are a date: day, month, year. Which chunking shows the date? (a) 27/03/1988 (b) 2703/19/88 (c) 27/0319/88 (d) 270/319/88
- 33.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 34.🔢 You want to remember the number 643758699. Which chunked version keeps every digit in the same order? (a) 643 758 699 (b) 643 755 8699 (c) 647 586 99 (d) 463 758 699
- 35.🔢 You want to remember the number 256402620. Which chunked version keeps every digit in the same order? (a) 256 402 2620 (b) 256 402 260 (c) 564 026 20 (d) 256 402 620
- 36.📅 The digits 05071986 are a date: day, month, year. Which chunking shows the date? (a) 05/0719/86 (b) 050/719/86 (c) 05/07/1986 (d) 0507/19/86
- 37.📅 The digits 19061996 are a date: day, month, year. Which chunking shows the date? (a) 19/06/1996 (b) 1906/19/96 (c) 190/619/96 (d) 19/0619/96
- 38.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 39.📅 The digits 20072010 are a date: day, month, year. Which chunking shows the date? (a) 2007/20/10 (b) 200/720/10 (c) 20/0720/10 (d) 20/07/2010
- 40.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
Answer key
- 2
- 28/07/1950
- three chunks, not ten
- 682 121 3062
- splitting into groups
- 25/11/1954
- 3
- 09/02/2016
- numbers and letter lists
- 2055 0149 1391
- 06/07/1989
- 25/02/1951
- 14/02/1995
- 2
- 1667 1027 2967
- 14/06/2015
- 183 960 866
- 269 280 025
- 04/07/2000
- 20/01/1955
- 24/07/2004
- 727 376 461
- 7165 8644 9605
- 24/07/1990
- 3
- 06/04/1951
- 8
- 19/02/1994
- 230 311 271
- 04/06/1988
- 12/03/2021
- 27/03/1988
- 9
- 643 758 699
- 256 402 620
- 05/07/1986
- 19/06/1996
- 3
- 20/07/2010
- 2
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