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.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 2.🔢 You want to remember the number 605283669082. Which chunked version keeps every digit in the same order? (a) 0528 3669 082 (b) 6052 8366 9082 (c) 6025 8366 9082 (d) 6052 8366 90082
- 3.📅 The digits 21031963 are a date: day, month, year. Which chunking shows the date? (a) 21/0319/63 (b) 21/03/1963 (c) 2103/19/63 (d) 210/319/63
- 4.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 5.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) is very long (d) changes daily
- 6.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 7.🔢 You want to remember the number 383503230560. Which chunked version keeps every digit in the same order? (a) 3835 0323 0560 (b) 3835 5032 30560 (c) 3853 0323 0560 (d) 8350 3230 560
- 8.🔢 You want to remember the number 420425204. Which chunked version keeps every digit in the same order? (a) 420 452 04 (b) 420 042 5204 (c) 420 425 204 (d) 420 245 204
- 9.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 10.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it has fewer digits (d) it is a smaller number
- 11.📅 The digits 11011961 are a date: day, month, year. Which chunking shows the date? (a) 11/0119/61 (b) 1101/19/61 (c) 11/01/1961 (d) 110/119/61
- 12.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 13.🔢 You want to remember the number 209960997. Which chunked version keeps every digit in the same order? (a) 209 960 9997 (b) 209 960 99 (c) 290 960 997 (d) 209 960 997
- 14.📅 The digits 28121965 are a date: day, month, year. Which chunking shows the date? (a) 28/12/1965 (b) 28/1219/65 (c) 281/219/65 (d) 2812/19/65
- 15.📅 The digits 07101967 are a date: day, month, year. Which chunking shows the date? (a) 07/10/1967 (b) 07/1019/67 (c) 0710/19/67 (d) 071/019/67
- 16.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 17.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 18.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) writing it twice (d) splitting into groups
- 19.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 20.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 21.🔢 You want to remember the number 993607787. Which chunked version keeps every digit in the same order? (a) 993 607 787 (b) 993 670 787 (c) 993 607 77 (d) 993 607 7887
- 22.🔢 You want to remember the number 831911940. Which chunked version keeps every digit in the same order? (a) 319 119 40 (b) 831 911 940 (c) 831 911 1940 (d) 813 911 940
- 23.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 24.📅 The digits 02091987 are a date: day, month, year. Which chunking shows the date? (a) 0209/19/87 (b) 020/919/87 (c) 02/0919/87 (d) 02/09/1987
- 25.📅 The digits 14111994 are a date: day, month, year. Which chunking shows the date? (a) 141/119/94 (b) 14/1119/94 (c) 1411/19/94 (d) 14/11/1994
- 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 315868998988. Which chunked version keeps every digit in the same order? (a) 3158 6899 98988 (b) 3158 6898 9988 (c) 3158 6899 8988 (d) 3156 8998 988
- 28.🔢 You want to remember the number 181135470101. Which chunked version keeps every digit in the same order? (a) 1811 3547 0011 (b) 1113 5470 101 (c) 1811 3547 0101 (d) 1811 3547 70101
- 29.🔢 You want to remember the number 6781430758. Which chunked version keeps every digit in the same order? (a) 678 143 0758 (b) 768 143 0758 (c) 678 143 30758 (d) 678 143 078
- 30.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) nothing at all (d) only pictures
- 31.📅 The digits 24082002 are a date: day, month, year. Which chunking shows the date? (a) 24/08/2002 (b) 24/0820/02 (c) 240/820/02 (d) 2408/20/02
- 32.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 1 9 4 7 (d) 19 and 47
- 33.🔢 You want to remember the number 932096320. Which chunked version keeps every digit in the same order? (a) 932 096 230 (b) 933 209 6320 (c) 932 096 320 (d) 920 963 20
- 34.🔢 You want to remember the number 944996243. Which chunked version keeps every digit in the same order? (a) 944 499 6243 (b) 449 962 43 (c) 944 996 243 (d) 949 496 243
- 35.🔢 You want to remember the number 502435801. Which chunked version keeps every digit in the same order? (a) 024 358 01 (b) 502 435 801 (c) 502 433 5801 (d) 502 435 081
- 36.📅 The digits 28041985 are a date: day, month, year. Which chunking shows the date? (a) 28/0419/85 (b) 28/04/1985 (c) 280/419/85 (d) 2804/19/85
- 37.🔢 You want to remember the number 574750078. Which chunked version keeps every digit in the same order? (a) 747 500 78 (b) 574 750 078 (c) 574 750 0078 (d) 574 570 078
- 38.🔢 You want to remember the number 7875227441. Which chunked version keeps every digit in the same order? (a) 787 522 7441 (b) 785 722 7441 (c) 788 752 27441 (d) 875 227 441
- 39.📅 The digits 03122001 are a date: day, month, year. Which chunking shows the date? (a) 031/220/01 (b) 0312/20/01 (c) 03/12/2001 (d) 03/1220/01
- 40.📅 The digits 07022014 are a date: day, month, year. Which chunking shows the date? (a) 07/02/2014 (b) 07/0220/14 (c) 070/220/14 (d) 0702/20/14
Answer key
- 6
- 6052 8366 9082
- 21/03/1963
- 2
- means something to you
- 4
- 3835 0323 0560
- 420 425 204
- 7
- three chunks, not ten
- 11/01/1961
- 2
- 209 960 997
- 28/12/1965
- 07/10/1967
- 5
- 9
- splitting into groups
- 5
- 3
- 993 607 787
- 831 911 940
- 5
- 02/09/1987
- 14/11/1994
- 3
- 3158 6899 8988
- 1811 3547 0101
- 678 143 0758
- numbers and letter lists
- 24/08/2002
- 19 and 47
- 932 096 320
- 944 996 243
- 502 435 801
- 28/04/1985
- 574 750 078
- 787 522 7441
- 03/12/2001
- 07/02/2014
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