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 chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) changes daily (d) means something to you
- 2.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures
- 3.📅 The digits 18081983 are a date: day, month, year. Which chunking shows the date? (a) 1808/19/83 (b) 18/0819/83 (c) 180/819/83 (d) 18/08/1983
- 4.🔢 You want to remember the number 865425602. Which chunked version keeps every digit in the same order? (a) 854 256 02 (b) 865 425 6602 (c) 865 425 602 (d) 865 452 602
- 5.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 6.🔢 You want to remember the number 883523839. Which chunked version keeps every digit in the same order? (a) 883 352 3839 (b) 883 523 839 (c) 883 253 839 (d) 883 528 39
- 7.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 8.📅 The digits 01081980 are a date: day, month, year. Which chunking shows the date? (a) 010/819/80 (b) 01/08/1980 (c) 0108/19/80 (d) 01/0819/80
- 9.🔢 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
- 10.📅 The digits 05051951 are a date: day, month, year. Which chunking shows the date? (a) 0505/19/51 (b) 050/519/51 (c) 05/05/1951 (d) 05/0519/51
- 11.🔢 You want to remember the number 711894908. Which chunked version keeps every digit in the same order? (a) 711 899 08 (b) 711 894 908 (c) 711 899 408 (d) 711 189 4908
- 12.📅 The digits 27021955 are a date: day, month, year. Which chunking shows the date? (a) 2702/19/55 (b) 27/0219/55 (c) 270/219/55 (d) 27/02/1955
- 13.🔢 You want to remember the number 4881710915. Which chunked version keeps every digit in the same order? (a) 488 171 0915 (b) 488 171 015 (c) 488 817 10915 (d) 488 171 0195
- 14.🔢 You want to remember the number 7697478075. Which chunked version keeps every digit in the same order? (a) 769 747 8075 (b) 769 747 88075 (c) 769 748 7075 (d) 769 778 075
- 15.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
- 16.🔢 You want to remember the number 195723723201. Which chunked version keeps every digit in the same order? (a) 1975 2372 3201 (b) 1955 7237 23201 (c) 1572 3723 201 (d) 1957 2372 3201
- 17.🔢 You want to remember the number 734936656568. Which chunked version keeps every digit in the same order? (a) 7349 3666 56568 (b) 7349 3665 6568 (c) 7349 3656 568 (d) 7349 3665 5668
- 18.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 and 947 (d) 1 9 4 7
- 19.🔢 You want to remember the number 5021114645. Which chunked version keeps every digit in the same order? (a) 502 111 645 (b) 052 111 4645 (c) 502 111 4645 (d) 502 111 44645
- 20.🔢 You want to remember the number 590486420892. Which chunked version keeps every digit in the same order? (a) 5904 6420 892 (b) 5904 6842 0892 (c) 5904 8642 0892 (d) 5904 8642 08922
- 21.📅 The digits 15071952 are a date: day, month, year. Which chunking shows the date? (a) 15/07/1952 (b) 15/0719/52 (c) 1507/19/52 (d) 150/719/52
- 22.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 23.📅 The digits 10022013 are a date: day, month, year. Which chunking shows the date? (a) 100/220/13 (b) 1002/20/13 (c) 10/0220/13 (d) 10/02/2013
- 24.📅 The digits 07101999 are a date: day, month, year. Which chunking shows the date? (a) 0710/19/99 (b) 071/019/99 (c) 07/10/1999 (d) 07/1019/99
- 25.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 26.🔢 You want to remember the number 7405121987. Which chunked version keeps every digit in the same order? (a) 774 051 21987 (b) 740 521 987 (c) 740 512 1978 (d) 740 512 1987
- 27.📅 The digits 18031963 are a date: day, month, year. Which chunking shows the date? (a) 18/0319/63 (b) 1803/19/63 (c) 180/319/63 (d) 18/03/1963
- 28.🔢 You want to remember the number 184290823691. Which chunked version keeps every digit in the same order? (a) 1842 9082 3691 (b) 1842 9082 23691 (c) 1842 9082 691 (d) 1842 9028 3691
- 29.🔢 You want to remember the number 372769115782. Which chunked version keeps every digit in the same order? (a) 3727 6911 57822 (b) 3776 9115 782 (c) 3727 6911 5782 (d) 3727 6191 5782
- 30.📅 The digits 05051968 are a date: day, month, year. Which chunking shows the date? (a) 050/519/68 (b) 05/0519/68 (c) 0505/19/68 (d) 05/05/1968
- 31.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 32.📅 The digits 06041966 are a date: day, month, year. Which chunking shows the date? (a) 06/0419/66 (b) 0604/19/66 (c) 06/04/1966 (d) 060/419/66
- 33.📅 The digits 24021994 are a date: day, month, year. Which chunking shows the date? (a) 24/0219/94 (b) 240/219/94 (c) 24/02/1994 (d) 2402/19/94
- 34.🔢 You want to remember the number 178873047. Which chunked version keeps every digit in the same order? (a) 178 873 074 (b) 178 870 47 (c) 178 873 047 (d) 178 887 3047
- 35.📅 The digits 04021978 are a date: day, month, year. Which chunking shows the date? (a) 040/219/78 (b) 0402/19/78 (c) 04/02/1978 (d) 04/0219/78
- 36.🔢 You want to remember the number 302185805. Which chunked version keeps every digit in the same order? (a) 302 185 80 (b) 330 218 5805 (c) 320 185 805 (d) 302 185 805
- 37.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 38.📅 The digits 05052025 are a date: day, month, year. Which chunking shows the date? (a) 05/0520/25 (b) 0505/20/25 (c) 05/05/2025 (d) 050/520/25
- 39.🔢 You want to remember the number 9139380100. Which chunked version keeps every digit in the same order? (a) 913 938 01000 (b) 913 938 0010 (c) 913 938 010 (d) 913 938 0100
- 40.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
Answer key
- means something to you
- numbers and letter lists
- 18/08/1983
- 865 425 602
- 5
- 883 523 839
- 5
- 01/08/1980
- three chunks, not ten
- 05/05/1951
- 711 894 908
- 27/02/1955
- 488 171 0915
- 769 747 8075
- splitting into groups
- 1957 2372 3201
- 7349 3665 6568
- 19 and 47
- 502 111 4645
- 5904 8642 0892
- 15/07/1952
- 6
- 10/02/2013
- 07/10/1999
- 5
- 740 512 1987
- 18/03/1963
- 1842 9082 3691
- 3727 6911 5782
- 05/05/1968
- 7
- 06/04/1966
- 24/02/1994
- 178 873 047
- 04/02/1978
- 302 185 805
- 4
- 05/05/2025
- 913 938 0100
- 5
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