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.🔢 Chunking works for… (a) only pictures (b) numbers and letter lists (c) nothing at all (d) only numbers
- 2.📅 The digits 20041967 are a date: day, month, year. Which chunking shows the date? (a) 2004/19/67 (b) 20/04/1967 (c) 200/419/67 (d) 20/0419/67
- 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is a smaller number (c) it is printed bigger (d) it has fewer digits
- 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 525928975. Which chunked version keeps every digit in the same order? (a) 525 928 975 (b) 525 929 75 (c) 525 592 8975 (d) 525 982 975
- 6.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 7.📅 The digits 07112018 are a date: day, month, year. Which chunking shows the date? (a) 0711/20/18 (b) 071/120/18 (c) 07/11/2018 (d) 07/1120/18
- 8.📅 The digits 12011971 are a date: day, month, year. Which chunking shows the date? (a) 120/119/71 (b) 12/01/1971 (c) 12/0119/71 (d) 1201/19/71
- 9.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) splitting into groups (d) writing it twice
- 10.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 11.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) means something to you (d) has no pattern
- 12.📅 The digits 08042007 are a date: day, month, year. Which chunking shows the date? (a) 08/0420/07 (b) 0804/20/07 (c) 080/420/07 (d) 08/04/2007
- 13.🔢 You want to remember the number 820240587822. Which chunked version keeps every digit in the same order? (a) 8820 2405 87822 (b) 8202 4058 7822 (c) 8202 0587 822 (d) 8202 0458 7822
- 14.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 15.📅 The digits 13011986 are a date: day, month, year. Which chunking shows the date? (a) 130/119/86 (b) 13/0119/86 (c) 1301/19/86 (d) 13/01/1986
- 16.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 17.🔢 You want to remember the number 106012228. Which chunked version keeps every digit in the same order? (a) 100 122 28 (b) 160 012 228 (c) 110 601 2228 (d) 106 012 228
- 18.📅 The digits 17021968 are a date: day, month, year. Which chunking shows the date? (a) 1702/19/68 (b) 170/219/68 (c) 17/0219/68 (d) 17/02/1968
- 19.🔢 You want to remember the number 876348695. Which chunked version keeps every digit in the same order? (a) 873 486 95 (b) 873 648 695 (c) 876 344 8695 (d) 876 348 695
- 20.📅 The digits 22011985 are a date: day, month, year. Which chunking shows the date? (a) 2201/19/85 (b) 22/01/1985 (c) 220/119/85 (d) 22/0119/85
- 21.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
- 22.📅 The digits 20071964 are a date: day, month, year. Which chunking shows the date? (a) 20/07/1964 (b) 200/719/64 (c) 2007/19/64 (d) 20/0719/64
- 23.📅 The digits 05111990 are a date: day, month, year. Which chunking shows the date? (a) 05/1119/90 (b) 051/119/90 (c) 0511/19/90 (d) 05/11/1990
- 24.📅 The digits 05061998 are a date: day, month, year. Which chunking shows the date? (a) 05/06/1998 (b) 05/0619/98 (c) 050/619/98 (d) 0506/19/98
- 25.🔢 You want to remember the number 6672220510. Which chunked version keeps every digit in the same order? (a) 676 222 0510 (b) 667 222 0510 (c) 667 222 20510 (d) 672 220 510
- 26.📅 The digits 06052017 are a date: day, month, year. Which chunking shows the date? (a) 06/05/2017 (b) 0605/20/17 (c) 060/520/17 (d) 06/0520/17
- 27.🔢 You want to remember the number 494489449. Which chunked version keeps every digit in the same order? (a) 494 484 949 (b) 494 489 449 (c) 494 894 49 (d) 494 448 9449
- 28.🔢 You want to remember the number 146100826146. Which chunked version keeps every digit in the same order? (a) 1461 0008 26146 (b) 1416 0082 6146 (c) 4610 0826 146 (d) 1461 0082 6146
- 29.📅 The digits 19042000 are a date: day, month, year. Which chunking shows the date? (a) 19/04/2000 (b) 1904/20/00 (c) 19/0420/00 (d) 190/420/00
- 30.📅 The digits 20011983 are a date: day, month, year. Which chunking shows the date? (a) 2001/19/83 (b) 200/119/83 (c) 20/01/1983 (d) 20/0119/83
- 31.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 32.📅 The digits 23121991 are a date: day, month, year. Which chunking shows the date? (a) 23/1219/91 (b) 23/12/1991 (c) 231/219/91 (d) 2312/19/91
- 33.📅 The digits 05092003 are a date: day, month, year. Which chunking shows the date? (a) 05/0920/03 (b) 0509/20/03 (c) 05/09/2003 (d) 050/920/03
- 34.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 35.🔢 You want to remember the number 171029504. Which chunked version keeps every digit in the same order? (a) 117 029 504 (b) 177 102 9504 (c) 171 029 50 (d) 171 029 504
- 36.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 37.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 38.📅 The digits 02091969 are a date: day, month, year. Which chunking shows the date? (a) 0209/19/69 (b) 020/919/69 (c) 02/09/1969 (d) 02/0919/69
- 39.📅 The digits 21082010 are a date: day, month, year. Which chunking shows the date? (a) 210/820/10 (b) 21/0820/10 (c) 2108/20/10 (d) 21/08/2010
- 40.🔢 You want to remember the number 988943120561. Which chunked version keeps every digit in the same order? (a) 9889 4311 20561 (b) 9889 4321 0561 (c) 9889 4312 051 (d) 9889 4312 0561
Answer key
- numbers and letter lists
- 20/04/1967
- three chunks, not ten
- 8
- 525 928 975
- 7
- 07/11/2018
- 12/01/1971
- splitting into groups
- 9
- means something to you
- 08/04/2007
- 8202 4058 7822
- 8
- 13/01/1986
- 3
- 106 012 228
- 17/02/1968
- 876 348 695
- 22/01/1985
- 19 and 47
- 20/07/1964
- 05/11/1990
- 05/06/1998
- 667 222 0510
- 06/05/2017
- 494 489 449
- 1461 0082 6146
- 19/04/2000
- 20/01/1983
- 4
- 23/12/1991
- 05/09/2003
- 2
- 171 029 504
- 5
- 3
- 02/09/1969
- 21/08/2010
- 9889 4312 0561
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