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.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
- 2.🔢 You want to remember the number 285526871. Which chunked version keeps every digit in the same order? (a) 825 526 871 (b) 285 526 87 (c) 285 526 871 (d) 285 552 6871
- 3.📅 The digits 05062023 are a date: day, month, year. Which chunking shows the date? (a) 050/620/23 (b) 05/0620/23 (c) 0506/20/23 (d) 05/06/2023
- 4.📅 The digits 13022013 are a date: day, month, year. Which chunking shows the date? (a) 13/02/2013 (b) 1302/20/13 (c) 13/0220/13 (d) 130/220/13
- 5.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
- 6.📅 The digits 18022022 are a date: day, month, year. Which chunking shows the date? (a) 18/0220/22 (b) 18/02/2022 (c) 1802/20/22 (d) 180/220/22
- 7.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 8.🔢 You want to remember the number 7566944304. Which chunked version keeps every digit in the same order? (a) 576 694 4304 (b) 756 644 304 (c) 756 694 44304 (d) 756 694 4304
- 9.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 10.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 11.🔢 You want to remember the number 962503613. Which chunked version keeps every digit in the same order? (a) 962 503 6113 (b) 692 503 613 (c) 962 503 61 (d) 962 503 613
- 12.📅 The digits 02041974 are a date: day, month, year. Which chunking shows the date? (a) 020/419/74 (b) 0204/19/74 (c) 02/04/1974 (d) 02/0419/74
- 13.🔢 You want to remember the number 289887677. Which chunked version keeps every digit in the same order? (a) 289 887 677 (b) 298 887 677 (c) 289 887 6677 (d) 298 876 77
- 14.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 15.📅 The digits 01052025 are a date: day, month, year. Which chunking shows the date? (a) 010/520/25 (b) 0105/20/25 (c) 01/0520/25 (d) 01/05/2025
- 16.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 17.🔢 You want to remember the number 132680813. Which chunked version keeps every digit in the same order? (a) 132 680 13 (b) 132 680 183 (c) 132 680 813 (d) 132 680 8133
- 18.🔢 You want to remember the number 529428849. Which chunked version keeps every digit in the same order? (a) 294 288 49 (b) 529 428 849 (c) 529 428 489 (d) 529 942 8849
- 19.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
- 20.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 21.🔢 You want to remember the number 248233033296. Which chunked version keeps every digit in the same order? (a) 4823 3033 296 (b) 2482 3303 2396 (c) 2482 3303 3296 (d) 2482 2330 33296
- 22.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 23.🔢 You want to remember the number 656917347. Which chunked version keeps every digit in the same order? (a) 656 913 747 (b) 656 917 347 (c) 665 691 7347 (d) 569 173 47
- 24.🔢 You want to remember the number 7076381770. Which chunked version keeps every digit in the same order? (a) 707 638 17770 (b) 076 381 770 (c) 707 638 1770 (d) 707 368 1770
- 25.🔢 You want to remember the number 189109058. Which chunked version keeps every digit in the same order? (a) 189 100 958 (b) 189 109 058 (c) 891 090 58 (d) 118 910 9058
- 26.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 27.📅 The digits 23022021 are a date: day, month, year. Which chunking shows the date? (a) 2302/20/21 (b) 230/220/21 (c) 23/0220/21 (d) 23/02/2021
- 28.📅 The digits 09111967 are a date: day, month, year. Which chunking shows the date? (a) 09/1119/67 (b) 091/119/67 (c) 0911/19/67 (d) 09/11/1967
- 29.📅 The digits 04041959 are a date: day, month, year. Which chunking shows the date? (a) 040/419/59 (b) 0404/19/59 (c) 04/0419/59 (d) 04/04/1959
- 30.🔢 You want to remember the number 195077859. Which chunked version keeps every digit in the same order? (a) 195 007 7859 (b) 195 078 59 (c) 195 077 859 (d) 195 077 895
- 31.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 1 and 947 (d) 194 and 7
- 32.🔢 You want to remember the number 313675954278. Which chunked version keeps every digit in the same order? (a) 3136 7955 4278 (b) 3136 7595 4278 (c) 3136 7595 42788 (d) 3136 7595 278
- 33.📅 The digits 10091988 are a date: day, month, year. Which chunking shows the date? (a) 100/919/88 (b) 10/0919/88 (c) 10/09/1988 (d) 1009/19/88
- 34.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 35.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 36.🔢 You want to remember the number 327379414966. Which chunked version keeps every digit in the same order? (a) 3273 7941 4696 (b) 3273 7994 14966 (c) 3237 9414 966 (d) 3273 7941 4966
- 37.🔢 You want to remember the number 9674489691. Which chunked version keeps every digit in the same order? (a) 967 448 961 (b) 967 448 9691 (c) 697 448 9691 (d) 967 448 89691
- 38.📅 The digits 25111960 are a date: day, month, year. Which chunking shows the date? (a) 2511/19/60 (b) 25/1119/60 (c) 251/119/60 (d) 25/11/1960
- 39.🔢 You want to remember the number 263524218174. Which chunked version keeps every digit in the same order? (a) 2635 5242 18174 (b) 2635 2421 8714 (c) 2635 2418 174 (d) 2635 2421 8174
- 40.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
Answer key
- three chunks, not ten
- 285 526 871
- 05/06/2023
- 13/02/2013
- means something to you
- 18/02/2022
- 5
- 756 694 4304
- 6
- 4
- 962 503 613
- 02/04/1974
- 289 887 677
- 5
- 01/05/2025
- 6
- 132 680 813
- 529 428 849
- splitting into groups
- 5
- 2482 3303 3296
- 7
- 656 917 347
- 707 638 1770
- 189 109 058
- 9
- 23/02/2021
- 09/11/1967
- 04/04/1959
- 195 077 859
- 19 and 47
- 3136 7595 4278
- 10/09/1988
- 4
- 5
- 3273 7941 4966
- 967 448 9691
- 25/11/1960
- 2635 2421 8174
- 8
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