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.🔢 You want to remember the number 1210520561. Which chunked version keeps every digit in the same order? (a) 121 005 20561 (b) 121 052 0561 (c) 121 052 0651 (d) 121 052 061
- 2.📅 The digits 13111977 are a date: day, month, year. Which chunking shows the date? (a) 131/119/77 (b) 1311/19/77 (c) 13/1119/77 (d) 13/11/1977
- 3.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
- 4.🔢 You want to remember the number 470041013901. Which chunked version keeps every digit in the same order? (a) 4704 1013 901 (b) 4700 4100 13901 (c) 4700 4101 3901 (d) 4700 4103 1901
- 5.📅 The digits 01042014 are a date: day, month, year. Which chunking shows the date? (a) 01/04/2014 (b) 0104/20/14 (c) 010/420/14 (d) 01/0420/14
- 6.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) has no pattern (d) changes daily
- 7.📅 The digits 20061984 are a date: day, month, year. Which chunking shows the date? (a) 20/0619/84 (b) 2006/19/84 (c) 200/619/84 (d) 20/06/1984
- 8.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 9.🔢 You want to remember the number 402496109001. Which chunked version keeps every digit in the same order? (a) 4024 9610 90001 (b) 4024 9610 0901 (c) 4024 9610 900 (d) 4024 9610 9001
- 10.🔢 You want to remember the number 855233134. Which chunked version keeps every digit in the same order? (a) 855 233 314 (b) 855 233 3134 (c) 855 233 34 (d) 855 233 134
- 11.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) only numbers (d) numbers and letter lists
- 12.🔢 You want to remember the number 306133651. Which chunked version keeps every digit in the same order? (a) 036 133 651 (b) 306 133 51 (c) 306 133 651 (d) 306 133 3651
- 13.🔢 You want to remember the number 263717440. Which chunked version keeps every digit in the same order? (a) 263 717 4440 (b) 267 317 440 (c) 637 174 40 (d) 263 717 440
- 14.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 15.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
- 16.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 17.🔢 You want to remember the number 3779097986. Which chunked version keeps every digit in the same order? (a) 779 097 986 (b) 377 099 7986 (c) 377 909 7986 (d) 377 790 97986
- 18.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 19.📅 The digits 19031959 are a date: day, month, year. Which chunking shows the date? (a) 190/319/59 (b) 1903/19/59 (c) 19/03/1959 (d) 19/0319/59
- 20.🔢 You want to remember the number 264354420. Which chunked version keeps every digit in the same order? (a) 264 354 40 (b) 246 354 420 (c) 264 335 4420 (d) 264 354 420
- 21.🔢 You want to remember the number 720956369. Which chunked version keeps every digit in the same order? (a) 720 956 36 (b) 720 956 369 (c) 270 956 369 (d) 720 955 6369
- 22.📅 The digits 14062016 are a date: day, month, year. Which chunking shows the date? (a) 14/0620/16 (b) 140/620/16 (c) 1406/20/16 (d) 14/06/2016
- 23.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it has fewer digits (c) it is a smaller number (d) three chunks, not ten
- 24.📅 The digits 05071996 are a date: day, month, year. Which chunking shows the date? (a) 0507/19/96 (b) 05/0719/96 (c) 05/07/1996 (d) 050/719/96
- 25.🔢 You want to remember the number 1374457390. Which chunked version keeps every digit in the same order? (a) 317 445 7390 (b) 137 445 77390 (c) 137 445 7390 (d) 137 445 790
- 26.📅 The digits 15041957 are a date: day, month, year. Which chunking shows the date? (a) 150/419/57 (b) 15/0419/57 (c) 15/04/1957 (d) 1504/19/57
- 27.📅 The digits 19102013 are a date: day, month, year. Which chunking shows the date? (a) 19/10/2013 (b) 1910/20/13 (c) 191/020/13 (d) 19/1020/13
- 28.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 29.🔢 You want to remember the number 4113054617. Which chunked version keeps every digit in the same order? (a) 411 305 4617 (b) 113 054 617 (c) 411 035 4617 (d) 411 305 44617
- 30.📅 The digits 10041960 are a date: day, month, year. Which chunking shows the date? (a) 100/419/60 (b) 10/0419/60 (c) 1004/19/60 (d) 10/04/1960
- 31.🔢 You want to remember the number 311568274. Which chunked version keeps every digit in the same order? (a) 115 682 74 (b) 311 568 247 (c) 311 568 274 (d) 311 566 8274
- 32.🔢 You want to remember the number 451757667. Which chunked version keeps every digit in the same order? (a) 451 757 66 (b) 451 757 667 (c) 445 175 7667 (d) 451 775 667
- 33.📅 The digits 01092022 are a date: day, month, year. Which chunking shows the date? (a) 0109/20/22 (b) 01/09/2022 (c) 01/0920/22 (d) 010/920/22
- 34.📅 The digits 19011954 are a date: day, month, year. Which chunking shows the date? (a) 1901/19/54 (b) 19/01/1954 (c) 19/0119/54 (d) 190/119/54
- 35.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 36.🔢 You want to remember the number 790349022. Which chunked version keeps every digit in the same order? (a) 790 349 022 (b) 790 390 22 (c) 790 340 922 (d) 790 349 9022
- 37.📅 The digits 22011979 are a date: day, month, year. Which chunking shows the date? (a) 220/119/79 (b) 22/0119/79 (c) 2201/19/79 (d) 22/01/1979
- 38.🔢 You want to remember the number 531589688122. Which chunked version keeps every digit in the same order? (a) 5315 8966 88122 (b) 5315 8968 812 (c) 5315 8968 8122 (d) 5315 8986 8122
- 39.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 40.📅 The digits 05041974 are a date: day, month, year. Which chunking shows the date? (a) 050/419/74 (b) 05/0419/74 (c) 0504/19/74 (d) 05/04/1974
Answer key
- 121 052 0561
- 13/11/1977
- splitting into groups
- 4700 4101 3901
- 01/04/2014
- means something to you
- 20/06/1984
- 5
- 4024 9610 9001
- 855 233 134
- numbers and letter lists
- 306 133 651
- 263 717 440
- 5
- 19 and 47
- 2
- 377 909 7986
- 8
- 19/03/1959
- 264 354 420
- 720 956 369
- 14/06/2016
- three chunks, not ten
- 05/07/1996
- 137 445 7390
- 15/04/1957
- 19/10/2013
- 8
- 411 305 4617
- 10/04/1960
- 311 568 274
- 451 757 667
- 01/09/2022
- 19/01/1954
- 3
- 790 349 022
- 22/01/1979
- 5315 8968 8122
- 4
- 05/04/1974
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