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 08081980 are a date: day, month, year. Which chunking shows the date? (a) 08/0819/80 (b) 08/08/1980 (c) 0808/19/80 (d) 080/819/80
- 2.📅 The digits 05071990 are a date: day, month, year. Which chunking shows the date? (a) 05/07/1990 (b) 05/0719/90 (c) 0507/19/90 (d) 050/719/90
- 3.📅 The digits 06011953 are a date: day, month, year. Which chunking shows the date? (a) 06/0119/53 (b) 0601/19/53 (c) 06/01/1953 (d) 060/119/53
- 4.📅 The digits 07061954 are a date: day, month, year. Which chunking shows the date? (a) 070/619/54 (b) 07/06/1954 (c) 07/0619/54 (d) 0706/19/54
- 5.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
- 6.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 1 9 4 7 (d) 19 and 47
- 7.📅 The digits 25041970 are a date: day, month, year. Which chunking shows the date? (a) 250/419/70 (b) 25/0419/70 (c) 2504/19/70 (d) 25/04/1970
- 8.🔢 You want to remember the number 214128742. Which chunked version keeps every digit in the same order? (a) 214 128 72 (b) 214 127 842 (c) 214 128 742 (d) 214 128 7422
- 9.🔢 You want to remember the number 252096660. Which chunked version keeps every digit in the same order? (a) 252 096 60 (b) 252 096 660 (c) 250 296 660 (d) 252 209 6660
- 10.📅 The digits 14092006 are a date: day, month, year. Which chunking shows the date? (a) 1409/20/06 (b) 140/920/06 (c) 14/0920/06 (d) 14/09/2006
- 11.📅 The digits 15011950 are a date: day, month, year. Which chunking shows the date? (a) 15/0119/50 (b) 15/01/1950 (c) 1501/19/50 (d) 150/119/50
- 12.📅 The digits 04031950 are a date: day, month, year. Which chunking shows the date? (a) 040/319/50 (b) 0403/19/50 (c) 04/0319/50 (d) 04/03/1950
- 13.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 14.🔢 You want to remember the number 1707950486. Which chunked version keeps every digit in the same order? (a) 170 795 0468 (b) 170 795 04866 (c) 170 950 486 (d) 170 795 0486
- 15.🔢 You want to remember the number 6967861108. Which chunked version keeps every digit in the same order? (a) 696 861 108 (b) 696 788 61108 (c) 669 786 1108 (d) 696 786 1108
- 16.🔢 You want to remember the number 108902371. Which chunked version keeps every digit in the same order? (a) 108 902 71 (b) 108 902 731 (c) 108 902 3771 (d) 108 902 371
- 17.📅 The digits 07111964 are a date: day, month, year. Which chunking shows the date? (a) 071/119/64 (b) 07/1119/64 (c) 0711/19/64 (d) 07/11/1964
- 18.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 19.📅 The digits 26022021 are a date: day, month, year. Which chunking shows the date? (a) 260/220/21 (b) 26/0220/21 (c) 2602/20/21 (d) 26/02/2021
- 20.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 21.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 22.🔢 You want to remember the number 1422098640. Which chunked version keeps every digit in the same order? (a) 142 209 840 (b) 142 209 8640 (c) 142 209 86400 (d) 142 290 8640
- 23.🔢 You want to remember the number 1070098630. Which chunked version keeps every digit in the same order? (a) 107 009 8630 (b) 107 009 860 (c) 107 090 8630 (d) 107 009 98630
- 24.📅 The digits 14011951 are a date: day, month, year. Which chunking shows the date? (a) 140/119/51 (b) 1401/19/51 (c) 14/0119/51 (d) 14/01/1951
- 25.🔢 You want to remember the number 9746474122. Which chunked version keeps every digit in the same order? (a) 974 647 41222 (b) 974 647 4122 (c) 974 644 122 (d) 974 644 7122
- 26.🔢 You want to remember the number 2013060731. Which chunked version keeps every digit in the same order? (a) 201 306 0731 (b) 220 130 60731 (c) 013 060 731 (d) 201 360 0731
- 27.🔢 You want to remember the number 646737587930. Which chunked version keeps every digit in the same order? (a) 6467 3758 7930 (b) 6467 3375 87930 (c) 6467 3785 7930 (d) 6467 3758 790
- 28.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) only numbers (d) numbers and letter lists
- 29.🔢 You want to remember the number 458490006306. Which chunked version keeps every digit in the same order? (a) 5484 9000 6306 (b) 5849 0006 306 (c) 4584 9000 6306 (d) 4584 9000 06306
- 30.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) saying it backwards (d) reading very fast
- 31.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 32.📅 The digits 19071984 are a date: day, month, year. Which chunking shows the date? (a) 19/0719/84 (b) 1907/19/84 (c) 19/07/1984 (d) 190/719/84
- 33.🔢 You want to remember the number 820222933997. Which chunked version keeps every digit in the same order? (a) 8222 2933 997 (b) 8202 2293 33997 (c) 8220 2293 3997 (d) 8202 2293 3997
- 34.🔢 You want to remember the number 1248847014. Which chunked version keeps every digit in the same order? (a) 124 884 7014 (b) 124 884 0714 (c) 112 488 47014 (d) 248 847 014
- 35.🔢 You want to remember the number 512695334727. Which chunked version keeps every digit in the same order? (a) 5122 6953 34727 (b) 5216 9533 4727 (c) 5126 9533 4727 (d) 5126 9533 727
- 36.📅 The digits 13081968 are a date: day, month, year. Which chunking shows the date? (a) 13/0819/68 (b) 13/08/1968 (c) 130/819/68 (d) 1308/19/68
- 37.🔢 You want to remember the number 7220503013. Which chunked version keeps every digit in the same order? (a) 722 050 3013 (b) 722 050 33013 (c) 720 503 013 (d) 722 053 0013
- 38.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 39.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 40.🔢 You want to remember the number 2436294701. Which chunked version keeps every digit in the same order? (a) 243 629 470 (b) 423 629 4701 (c) 243 629 47011 (d) 243 629 4701
Answer key
- 08/08/1980
- 05/07/1990
- 06/01/1953
- 07/06/1954
- means something to you
- 19 and 47
- 25/04/1970
- 214 128 742
- 252 096 660
- 14/09/2006
- 15/01/1950
- 04/03/1950
- 4
- 170 795 0486
- 696 786 1108
- 108 902 371
- 07/11/1964
- 4
- 26/02/2021
- 3
- 2
- 142 209 8640
- 107 009 8630
- 14/01/1951
- 974 647 4122
- 201 306 0731
- 6467 3758 7930
- numbers and letter lists
- 4584 9000 6306
- splitting into groups
- 5
- 19/07/1984
- 8202 2293 3997
- 124 884 7014
- 5126 9533 4727
- 13/08/1968
- 722 050 3013
- 8
- 7
- 243 629 4701
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