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.📅 The digits 18041988 are a date: day, month, year. Which chunking shows the date? (a) 180/419/88 (b) 18/04/1988 (c) 18/0419/88 (d) 1804/19/88
- 2.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) it is printed bigger (d) three chunks, not ten
- 3.🔢 You want to remember the number 2435380511. Which chunked version keeps every digit in the same order? (a) 243 538 80511 (b) 243 583 0511 (c) 235 380 511 (d) 243 538 0511
- 4.📅 The digits 03111959 are a date: day, month, year. Which chunking shows the date? (a) 0311/19/59 (b) 031/119/59 (c) 03/11/1959 (d) 03/1119/59
- 5.🔢 You want to remember the number 392292890861. Which chunked version keeps every digit in the same order? (a) 3292 9289 0861 (b) 3922 9289 0861 (c) 3922 9289 086 (d) 3922 9228 90861
- 6.📅 The digits 04051952 are a date: day, month, year. Which chunking shows the date? (a) 040/519/52 (b) 04/05/1952 (c) 0405/19/52 (d) 04/0519/52
- 7.📅 The digits 05061951 are a date: day, month, year. Which chunking shows the date? (a) 050/619/51 (b) 0506/19/51 (c) 05/0619/51 (d) 05/06/1951
- 8.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) writing it twice (d) splitting into groups
- 9.📅 The digits 01021970 are a date: day, month, year. Which chunking shows the date? (a) 010/219/70 (b) 01/02/1970 (c) 01/0219/70 (d) 0102/19/70
- 10.📅 The digits 20011970 are a date: day, month, year. Which chunking shows the date? (a) 200/119/70 (b) 2001/19/70 (c) 20/01/1970 (d) 20/0119/70
- 11.🔢 You want to remember the number 791366929649. Which chunked version keeps every digit in the same order? (a) 7991 3669 29649 (b) 7936 6929 649 (c) 7913 6692 9694 (d) 7913 6692 9649
- 12.🔢 You want to remember the number 741773140544. Which chunked version keeps every digit in the same order? (a) 7417 7314 0544 (b) 7417 7314 544 (c) 7411 7731 40544 (d) 4717 7314 0544
- 13.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 14.🔢 You want to remember the number 270437405. Which chunked version keeps every digit in the same order? (a) 207 437 405 (b) 274 374 05 (c) 270 437 405 (d) 227 043 7405
- 15.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 19 and 47 (c) 1 and 947 (d) 1 9 4 7
- 16.📅 The digits 09091955 are a date: day, month, year. Which chunking shows the date? (a) 090/919/55 (b) 0909/19/55 (c) 09/0919/55 (d) 09/09/1955
- 17.📅 The digits 11052008 are a date: day, month, year. Which chunking shows the date? (a) 11/05/2008 (b) 110/520/08 (c) 11/0520/08 (d) 1105/20/08
- 18.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 19.🔢 You want to remember the number 465539419. Which chunked version keeps every digit in the same order? (a) 465 359 419 (b) 465 539 4419 (c) 465 539 49 (d) 465 539 419
- 20.🔢 You want to remember the number 3899894971. Which chunked version keeps every digit in the same order? (a) 389 994 971 (b) 389 984 9971 (c) 389 998 94971 (d) 389 989 4971
- 21.🔢 You want to remember the number 443994986660. Which chunked version keeps every digit in the same order? (a) 4439 9496 660 (b) 4439 9498 6660 (c) 4439 9498 66660 (d) 4439 9498 6606
- 22.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 23.🔢 You want to remember the number 612166700. Which chunked version keeps every digit in the same order? (a) 612 166 6700 (b) 612 166 700 (c) 621 667 00 (d) 612 167 600
- 24.📅 The digits 20111962 are a date: day, month, year. Which chunking shows the date? (a) 20/1119/62 (b) 2011/19/62 (c) 20/11/1962 (d) 201/119/62
- 25.📅 The digits 21021957 are a date: day, month, year. Which chunking shows the date? (a) 210/219/57 (b) 21/0219/57 (c) 21/02/1957 (d) 2102/19/57
- 26.🔢 You want to remember the number 181564364460. Which chunked version keeps every digit in the same order? (a) 1815 6436 4460 (b) 1815 6436 460 (c) 1816 5436 4460 (d) 1815 6436 44600
- 27.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 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 7168104506. Which chunked version keeps every digit in the same order? (a) 716 810 4560 (b) 716 810 406 (c) 716 810 45066 (d) 716 810 4506
- 30.🔢 You want to remember the number 4524493665. Which chunked version keeps every digit in the same order? (a) 452 449 3665 (b) 424 493 665 (c) 452 449 36665 (d) 452 449 6365
- 31.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 32.📅 The digits 28101962 are a date: day, month, year. Which chunking shows the date? (a) 281/019/62 (b) 28/10/1962 (c) 28/1019/62 (d) 2810/19/62
- 33.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) is very long (d) changes daily
- 34.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 35.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) nothing at all (d) only pictures
- 36.🔢 You want to remember the number 832675784707. Which chunked version keeps every digit in the same order? (a) 8327 5784 707 (b) 8326 7578 84707 (c) 8326 7578 4707 (d) 8326 7587 4707
- 37.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 38.📅 The digits 14011988 are a date: day, month, year. Which chunking shows the date? (a) 140/119/88 (b) 14/01/1988 (c) 14/0119/88 (d) 1401/19/88
- 39.🔢 You want to remember the number 816947297. Which chunked version keeps every digit in the same order? (a) 816 947 2997 (b) 816 947 297 (c) 186 947 297 (d) 869 472 97
- 40.📅 The digits 09041954 are a date: day, month, year. Which chunking shows the date? (a) 0904/19/54 (b) 090/419/54 (c) 09/04/1954 (d) 09/0419/54
Answer key
- 18/04/1988
- three chunks, not ten
- 243 538 0511
- 03/11/1959
- 3922 9289 0861
- 04/05/1952
- 05/06/1951
- splitting into groups
- 01/02/1970
- 20/01/1970
- 7913 6692 9649
- 7417 7314 0544
- 3
- 270 437 405
- 19 and 47
- 09/09/1955
- 11/05/2008
- 4
- 465 539 419
- 389 989 4971
- 4439 9498 6660
- 6
- 612 166 700
- 20/11/1962
- 21/02/1957
- 1815 6436 4460
- 4
- 4
- 716 810 4506
- 452 449 3665
- 5
- 28/10/1962
- means something to you
- 6
- numbers and letter lists
- 8326 7578 4707
- 2
- 14/01/1988
- 816 947 297
- 09/04/1954
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