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 544482201. Which chunked version keeps every digit in the same order? (a) 544 482 201 (b) 544 482 021 (c) 544 422 01 (d) 544 482 2011
- 2.🔢 You want to remember the number 831511657383. Which chunked version keeps every digit in the same order? (a) 8315 1165 7383 (b) 8315 1165 73883 (c) 8315 1165 7833 (d) 8151 1657 383
- 3.🔢 A chunk is easiest to keep when it… (a) changes daily (b) is very long (c) has no pattern (d) means something to you
- 4.🔢 You want to remember the number 5442246829. Which chunked version keeps every digit in the same order? (a) 544 222 46829 (b) 442 246 829 (c) 542 424 6829 (d) 544 224 6829
- 5.🔢 You want to remember the number 476424384282. Which chunked version keeps every digit in the same order? (a) 4764 2438 2482 (b) 4764 2438 42282 (c) 4764 2438 4282 (d) 4764 2438 422
- 6.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 7.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 8.📅 The digits 08032015 are a date: day, month, year. Which chunking shows the date? (a) 0803/20/15 (b) 08/0320/15 (c) 080/320/15 (d) 08/03/2015
- 9.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) three chunks, not ten (d) it has fewer digits
- 10.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 11.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 12.🔢 You want to remember the number 7181013550. Which chunked version keeps every digit in the same order? (a) 178 101 3550 (b) 718 113 550 (c) 718 110 13550 (d) 718 101 3550
- 13.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
- 14.🔢 You want to remember the number 3794017158. Which chunked version keeps every digit in the same order? (a) 379 410 7158 (b) 379 401 7158 (c) 379 401 77158 (d) 379 407 158
- 15.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
- 16.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 17.🔢 You want to remember the number 268541369352. Which chunked version keeps every digit in the same order? (a) 2684 5136 9352 (b) 2685 4413 69352 (c) 2685 4136 935 (d) 2685 4136 9352
- 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 25091968 are a date: day, month, year. Which chunking shows the date? (a) 25/09/1968 (b) 2509/19/68 (c) 250/919/68 (d) 25/0919/68
- 20.📅 The digits 19032025 are a date: day, month, year. Which chunking shows the date? (a) 190/320/25 (b) 19/03/2025 (c) 1903/20/25 (d) 19/0320/25
- 21.📅 The digits 15031979 are a date: day, month, year. Which chunking shows the date? (a) 150/319/79 (b) 1503/19/79 (c) 15/0319/79 (d) 15/03/1979
- 22.🔢 You want to remember the number 381361170. Which chunked version keeps every digit in the same order? (a) 381 361 17 (b) 388 136 1170 (c) 381 361 170 (d) 381 631 170
- 23.📅 The digits 10071955 are a date: day, month, year. Which chunking shows the date? (a) 100/719/55 (b) 1007/19/55 (c) 10/0719/55 (d) 10/07/1955
- 24.🔢 You want to remember the number 507006073. Which chunked version keeps every digit in the same order? (a) 507 006 037 (b) 507 700 6073 (c) 507 006 07 (d) 507 006 073
- 25.📅 The digits 08102024 are a date: day, month, year. Which chunking shows the date? (a) 0810/20/24 (b) 081/020/24 (c) 08/10/2024 (d) 08/1020/24
- 26.📅 The digits 04081952 are a date: day, month, year. Which chunking shows the date? (a) 04/0819/52 (b) 04/08/1952 (c) 040/819/52 (d) 0408/19/52
- 27.🔢 You want to remember the number 462359194680. Which chunked version keeps every digit in the same order? (a) 4622 3591 94680 (b) 4625 3919 4680 (c) 4623 5919 680 (d) 4623 5919 4680
- 28.🔢 You want to remember the number 679666877055. Which chunked version keeps every digit in the same order? (a) 6679 6668 77055 (b) 6796 6687 705 (c) 6796 6687 7055 (d) 6796 6687 7505
- 29.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 30.🔢 You want to remember the number 130488619. Which chunked version keeps every digit in the same order? (a) 130 488 61 (b) 113 048 8619 (c) 103 488 619 (d) 130 488 619
- 31.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 32.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 33.📅 The digits 17041965 are a date: day, month, year. Which chunking shows the date? (a) 1704/19/65 (b) 17/0419/65 (c) 170/419/65 (d) 17/04/1965
- 34.📅 The digits 01072015 are a date: day, month, year. Which chunking shows the date? (a) 0107/20/15 (b) 01/0720/15 (c) 010/720/15 (d) 01/07/2015
- 35.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 36.📅 The digits 27111985 are a date: day, month, year. Which chunking shows the date? (a) 27/1119/85 (b) 2711/19/85 (c) 27/11/1985 (d) 271/119/85
- 37.🔢 You want to remember the number 3609888255. Which chunked version keeps every digit in the same order? (a) 360 988 8255 (b) 360 898 8255 (c) 360 988 88255 (d) 360 988 255
- 38.📅 The digits 06021996 are a date: day, month, year. Which chunking shows the date? (a) 06/02/1996 (b) 06/0219/96 (c) 0602/19/96 (d) 060/219/96
- 39.🔢 You want to remember the number 411146922. Which chunked version keeps every digit in the same order? (a) 411 114 6922 (b) 411 149 22 (c) 141 146 922 (d) 411 146 922
- 40.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
Answer key
- 544 482 201
- 8315 1165 7383
- means something to you
- 544 224 6829
- 4764 2438 4282
- 5
- 8
- 08/03/2015
- three chunks, not ten
- 6
- 5
- 718 101 3550
- 19 and 47
- 379 401 7158
- splitting into groups
- 4
- 2685 4136 9352
- 4
- 25/09/1968
- 19/03/2025
- 15/03/1979
- 381 361 170
- 10/07/1955
- 507 006 073
- 08/10/2024
- 04/08/1952
- 4623 5919 4680
- 6796 6687 7055
- 7
- 130 488 619
- 2
- 3
- 17/04/1965
- 01/07/2015
- 8
- 27/11/1985
- 360 988 8255
- 06/02/1996
- 411 146 922
- 4
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