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 791486234. Which chunked version keeps every digit in the same order? (a) 791 482 34 (b) 791 488 6234 (c) 971 486 234 (d) 791 486 234
- 2.🔢 You want to remember the number 669592963207. Which chunked version keeps every digit in the same order? (a) 6959 2963 207 (b) 6695 9296 3270 (c) 6669 5929 63207 (d) 6695 9296 3207
- 3.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 1 9 4 7 (d) 194 and 7
- 4.📅 The digits 03021995 are a date: day, month, year. Which chunking shows the date? (a) 030/219/95 (b) 0302/19/95 (c) 03/02/1995 (d) 03/0219/95
- 5.📅 The digits 05062024 are a date: day, month, year. Which chunking shows the date? (a) 0506/20/24 (b) 05/0620/24 (c) 05/06/2024 (d) 050/620/24
- 6.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) means something to you (d) changes daily
- 7.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) writing it twice (d) splitting into groups
- 8.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
- 9.📅 The digits 01032018 are a date: day, month, year. Which chunking shows the date? (a) 0103/20/18 (b) 010/320/18 (c) 01/03/2018 (d) 01/0320/18
- 10.🔢 You want to remember the number 560759055421. Which chunked version keeps every digit in the same order? (a) 5607 5905 5241 (b) 5600 7590 55421 (c) 5675 9055 421 (d) 5607 5905 5421
- 11.🔢 You want to remember the number 6184820927. Which chunked version keeps every digit in the same order? (a) 618 428 0927 (b) 618 448 20927 (c) 618 482 027 (d) 618 482 0927
- 12.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 13.🔢 You want to remember the number 237914479. Which chunked version keeps every digit in the same order? (a) 237 914 479 (b) 237 914 4479 (c) 239 144 79 (d) 239 714 479
- 14.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) numbers and letter lists (d) only numbers
- 15.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 16.🔢 You want to remember the number 3922347020. Which chunked version keeps every digit in the same order? (a) 392 223 47020 (b) 392 237 020 (c) 392 234 7020 (d) 392 234 7200
- 17.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 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 08092022 are a date: day, month, year. Which chunking shows the date? (a) 0809/20/22 (b) 080/920/22 (c) 08/09/2022 (d) 08/0920/22
- 20.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 21.📅 The digits 23081961 are a date: day, month, year. Which chunking shows the date? (a) 2308/19/61 (b) 230/819/61 (c) 23/08/1961 (d) 23/0819/61
- 22.📅 The digits 27041990 are a date: day, month, year. Which chunking shows the date? (a) 270/419/90 (b) 27/0419/90 (c) 2704/19/90 (d) 27/04/1990
- 23.📅 The digits 09031982 are a date: day, month, year. Which chunking shows the date? (a) 09/03/1982 (b) 09/0319/82 (c) 090/319/82 (d) 0903/19/82
- 24.📅 The digits 16101962 are a date: day, month, year. Which chunking shows the date? (a) 16/1019/62 (b) 161/019/62 (c) 1610/19/62 (d) 16/10/1962
- 25.🔢 You want to remember the number 733090127805. Which chunked version keeps every digit in the same order? (a) 7309 0127 805 (b) 7330 9012 77805 (c) 7303 9012 7805 (d) 7330 9012 7805
- 26.📅 The digits 08031969 are a date: day, month, year. Which chunking shows the date? (a) 08/03/1969 (b) 080/319/69 (c) 08/0319/69 (d) 0803/19/69
- 27.🔢 You want to remember the number 846372474. Which chunked version keeps every digit in the same order? (a) 846 372 447 (b) 846 372 474 (c) 846 372 4474 (d) 463 724 74
- 28.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 29.🔢 You want to remember the number 580638248. Which chunked version keeps every digit in the same order? (a) 508 638 248 (b) 580 638 248 (c) 588 063 8248 (d) 580 638 28
- 30.📅 The digits 21111971 are a date: day, month, year. Which chunking shows the date? (a) 2111/19/71 (b) 21/1119/71 (c) 211/119/71 (d) 21/11/1971
- 31.🔢 You want to remember the number 278857804. Which chunked version keeps every digit in the same order? (a) 287 857 804 (b) 278 578 04 (c) 278 857 8004 (d) 278 857 804
- 32.🔢 You want to remember the number 388798991447. Which chunked version keeps every digit in the same order? (a) 3878 9899 1447 (b) 3887 9899 14447 (c) 3887 9899 1447 (d) 3887 9899 144
- 33.📅 The digits 15122023 are a date: day, month, year. Which chunking shows the date? (a) 1512/20/23 (b) 15/12/2023 (c) 151/220/23 (d) 15/1220/23
- 34.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 35.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 36.🔢 You want to remember the number 7071211166. Which chunked version keeps every digit in the same order? (a) 770 121 1166 (b) 707 121 11166 (c) 707 121 1166 (d) 707 121 166
- 37.🔢 You want to remember the number 339554462526. Which chunked version keeps every digit in the same order? (a) 3395 5544 62526 (b) 3395 4462 526 (c) 3395 5446 2526 (d) 3359 5446 2526
- 38.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 39.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 40.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
Answer key
- 791 486 234
- 6695 9296 3207
- 19 and 47
- 03/02/1995
- 05/06/2024
- means something to you
- splitting into groups
- three chunks, not ten
- 01/03/2018
- 5607 5905 5421
- 618 482 0927
- 4
- 237 914 479
- numbers and letter lists
- 8
- 392 234 7020
- 2
- 4
- 08/09/2022
- 6
- 23/08/1961
- 27/04/1990
- 09/03/1982
- 16/10/1962
- 7330 9012 7805
- 08/03/1969
- 846 372 474
- 4
- 580 638 248
- 21/11/1971
- 278 857 804
- 3887 9899 1447
- 15/12/2023
- 8
- 3
- 707 121 1166
- 3395 5446 2526
- 5
- 5
- 4
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