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 23101959 are a date: day, month, year. Which chunking shows the date? (a) 23/10/1959 (b) 231/019/59 (c) 2310/19/59 (d) 23/1019/59
- 2.📅 The digits 17072014 are a date: day, month, year. Which chunking shows the date? (a) 1707/20/14 (b) 17/0720/14 (c) 17/07/2014 (d) 170/720/14
- 3.🔢 You want to remember the number 9250160757. Which chunked version keeps every digit in the same order? (a) 925 016 7057 (b) 925 016 0757 (c) 950 160 757 (d) 992 501 60757
- 4.📅 The digits 14022007 are a date: day, month, year. Which chunking shows the date? (a) 14/02/2007 (b) 14/0220/07 (c) 1402/20/07 (d) 140/220/07
- 5.🔢 You want to remember the number 797635976. Which chunked version keeps every digit in the same order? (a) 779 763 5976 (b) 797 365 976 (c) 797 635 976 (d) 776 359 76
- 6.📅 The digits 20122013 are a date: day, month, year. Which chunking shows the date? (a) 201/220/13 (b) 20/12/2013 (c) 2012/20/13 (d) 20/1220/13
- 7.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 8.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 9.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 10.📅 The digits 16032015 are a date: day, month, year. Which chunking shows the date? (a) 16/0320/15 (b) 160/320/15 (c) 1603/20/15 (d) 16/03/2015
- 11.🔢 You want to remember the number 961147471. Which chunked version keeps every digit in the same order? (a) 961 147 471 (b) 961 147 41 (c) 961 147 741 (d) 961 147 4771
- 12.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
- 13.🔢 You want to remember the number 6461067831. Which chunked version keeps every digit in the same order? (a) 646 106 7381 (b) 661 067 831 (c) 646 106 7831 (d) 646 106 77831
- 14.🔢 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
- 15.📅 The digits 21082022 are a date: day, month, year. Which chunking shows the date? (a) 21/0820/22 (b) 210/820/22 (c) 21/08/2022 (d) 2108/20/22
- 16.🔢 You want to remember the number 112708407159. Which chunked version keeps every digit in the same order? (a) 1270 8407 159 (b) 1112 7084 07159 (c) 1127 0840 7159 (d) 1120 7840 7159
- 17.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) only pictures (d) numbers and letter lists
- 18.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) changes daily (d) is very long
- 19.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 20.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 21.📅 The digits 25021956 are a date: day, month, year. Which chunking shows the date? (a) 250/219/56 (b) 2502/19/56 (c) 25/02/1956 (d) 25/0219/56
- 22.📅 The digits 08041997 are a date: day, month, year. Which chunking shows the date? (a) 0804/19/97 (b) 08/0419/97 (c) 08/04/1997 (d) 080/419/97
- 23.📅 The digits 21112005 are a date: day, month, year. Which chunking shows the date? (a) 2111/20/05 (b) 21/11/2005 (c) 211/120/05 (d) 21/1120/05
- 24.🔢 You want to remember the number 690632637151. Which chunked version keeps every digit in the same order? (a) 6906 3263 7151 (b) 6906 3263 71151 (c) 6906 2363 7151 (d) 6906 3237 151
- 25.📅 The digits 28092006 are a date: day, month, year. Which chunking shows the date? (a) 28/09/2006 (b) 280/920/06 (c) 28/0920/06 (d) 2809/20/06
- 26.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 27.🔢 You want to remember the number 135828302. Which chunked version keeps every digit in the same order? (a) 135 828 3002 (b) 138 283 02 (c) 135 828 302 (d) 135 882 302
- 28.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 29.📅 The digits 06041953 are a date: day, month, year. Which chunking shows the date? (a) 06/0419/53 (b) 0604/19/53 (c) 06/04/1953 (d) 060/419/53
- 30.🔢 You want to remember the number 837206224848. Which chunked version keeps every digit in the same order? (a) 8372 0062 24848 (b) 8372 0622 448 (c) 8372 0262 4848 (d) 8372 0622 4848
- 31.📅 The digits 19041967 are a date: day, month, year. Which chunking shows the date? (a) 1904/19/67 (b) 19/0419/67 (c) 190/419/67 (d) 19/04/1967
- 32.🔢 You want to remember the number 396321184. Which chunked version keeps every digit in the same order? (a) 396 321 184 (b) 396 321 1184 (c) 396 231 184 (d) 396 321 84
- 33.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 34.🔢 You want to remember the number 8550504292. Which chunked version keeps every digit in the same order? (a) 855 054 0292 (b) 855 050 4292 (c) 855 050 492 (d) 855 005 04292
- 35.📅 The digits 27072004 are a date: day, month, year. Which chunking shows the date? (a) 2707/20/04 (b) 27/0720/04 (c) 27/07/2004 (d) 270/720/04
- 36.📅 The digits 04091971 are a date: day, month, year. Which chunking shows the date? (a) 04/09/1971 (b) 040/919/71 (c) 04/0919/71 (d) 0409/19/71
- 37.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 38.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
- 39.🔢 You want to remember the number 219110295. Which chunked version keeps every digit in the same order? (a) 219 110 259 (b) 219 111 0295 (c) 219 110 295 (d) 219 110 29
- 40.🔢 You want to remember the number 481288472523. Which chunked version keeps every digit in the same order? (a) 4812 8847 523 (b) 4812 8844 72523 (c) 4812 8847 2523 (d) 8412 8847 2523
Answer key
- 23/10/1959
- 17/07/2014
- 925 016 0757
- 14/02/2007
- 797 635 976
- 20/12/2013
- 6
- 5
- 8
- 16/03/2015
- 961 147 471
- splitting into groups
- 646 106 7831
- 19 and 47
- 21/08/2022
- 1127 0840 7159
- numbers and letter lists
- means something to you
- 6
- 4
- 25/02/1956
- 08/04/1997
- 21/11/2005
- 6906 3263 7151
- 28/09/2006
- 3
- 135 828 302
- 5
- 06/04/1953
- 8372 0622 4848
- 19/04/1967
- 396 321 184
- 3
- 855 050 4292
- 27/07/2004
- 04/09/1971
- 5
- three chunks, not ten
- 219 110 295
- 4812 8847 2523
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