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 153125102. Which chunked version keeps every digit in the same order? (a) 513 125 102 (b) 153 125 102 (c) 153 125 1022 (d) 153 125 12
- 2.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 3.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 4.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 5.📅 The digits 10081975 are a date: day, month, year. Which chunking shows the date? (a) 10/0819/75 (b) 1008/19/75 (c) 10/08/1975 (d) 100/819/75
- 6.📅 The digits 12021967 are a date: day, month, year. Which chunking shows the date? (a) 12/0219/67 (b) 1202/19/67 (c) 12/02/1967 (d) 120/219/67
- 7.🔢 You want to remember the number 305321162297. Which chunked version keeps every digit in the same order? (a) 3532 1162 297 (b) 3053 2116 62297 (c) 3053 2116 2297 (d) 0353 2116 2297
- 8.🔢 Chunking works for… (a) only pictures (b) numbers and letter lists (c) only numbers (d) nothing at all
- 9.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 10.🔢 You want to remember the number 1194319310. Which chunked version keeps every digit in the same order? (a) 119 431 93110 (b) 119 431 930 (c) 119 431 9130 (d) 119 431 9310
- 11.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
- 12.📅 The digits 08021998 are a date: day, month, year. Which chunking shows the date? (a) 08/0219/98 (b) 08/02/1998 (c) 0802/19/98 (d) 080/219/98
- 13.📅 The digits 05032002 are a date: day, month, year. Which chunking shows the date? (a) 05/0320/02 (b) 050/320/02 (c) 0503/20/02 (d) 05/03/2002
- 14.🔢 You want to remember the number 490700407. Which chunked version keeps every digit in the same order? (a) 490 700 0407 (b) 490 704 07 (c) 490 700 407 (d) 409 700 407
- 15.🔢 You want to remember the number 3192678980. Which chunked version keeps every digit in the same order? (a) 319 267 8980 (b) 319 267 78980 (c) 392 678 980 (d) 319 267 9880
- 16.📅 The digits 13041995 are a date: day, month, year. Which chunking shows the date? (a) 13/0419/95 (b) 1304/19/95 (c) 13/04/1995 (d) 130/419/95
- 17.📅 The digits 23012017 are a date: day, month, year. Which chunking shows the date? (a) 230/120/17 (b) 2301/20/17 (c) 23/01/2017 (d) 23/0120/17
- 18.📅 The digits 21091970 are a date: day, month, year. Which chunking shows the date? (a) 210/919/70 (b) 21/0919/70 (c) 21/09/1970 (d) 2109/19/70
- 19.🔢 You want to remember the number 736718808579. Which chunked version keeps every digit in the same order? (a) 7367 1880 85779 (b) 7361 8808 579 (c) 7367 1880 8759 (d) 7367 1880 8579
- 20.🔢 You want to remember the number 3517582261. Which chunked version keeps every digit in the same order? (a) 517 582 261 (b) 351 758 82261 (c) 315 758 2261 (d) 351 758 2261
- 21.🔢 You want to remember the number 664120882. Which chunked version keeps every digit in the same order? (a) 666 412 0882 (b) 664 120 82 (c) 664 120 882 (d) 646 120 882
- 22.📅 The digits 15011959 are a date: day, month, year. Which chunking shows the date? (a) 1501/19/59 (b) 15/01/1959 (c) 15/0119/59 (d) 150/119/59
- 23.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 24.🔢 You want to remember the number 310500483. Which chunked version keeps every digit in the same order? (a) 310 050 0483 (b) 310 504 83 (c) 310 500 483 (d) 310 050 483
- 25.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 26.🔢 You want to remember the number 9864321640. Which chunked version keeps every digit in the same order? (a) 986 432 6140 (b) 986 432 16440 (c) 864 321 640 (d) 986 432 1640
- 27.🔢 You want to remember the number 378540964089. Which chunked version keeps every digit in the same order? (a) 3754 0964 089 (b) 3785 4409 64089 (c) 3785 4096 4089 (d) 3875 4096 4089
- 28.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 29.📅 The digits 04012010 are a date: day, month, year. Which chunking shows the date? (a) 04/0120/10 (b) 040/120/10 (c) 04/01/2010 (d) 0401/20/10
- 30.📅 The digits 24041956 are a date: day, month, year. Which chunking shows the date? (a) 24/04/1956 (b) 2404/19/56 (c) 24/0419/56 (d) 240/419/56
- 31.📅 The digits 16082012 are a date: day, month, year. Which chunking shows the date? (a) 16/08/2012 (b) 1608/20/12 (c) 160/820/12 (d) 16/0820/12
- 32.🔢 You want to remember the number 3540300685. Which chunked version keeps every digit in the same order? (a) 354 030 0865 (b) 354 030 0685 (c) 354 403 00685 (d) 354 030 685
- 33.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 1 and 947 (d) 19 and 47
- 34.📅 The digits 16051994 are a date: day, month, year. Which chunking shows the date? (a) 1605/19/94 (b) 16/0519/94 (c) 16/05/1994 (d) 160/519/94
- 35.📅 The digits 07052002 are a date: day, month, year. Which chunking shows the date? (a) 07/05/2002 (b) 070/520/02 (c) 0705/20/02 (d) 07/0520/02
- 36.🔢 You want to remember the number 148785061. Which chunked version keeps every digit in the same order? (a) 148 785 061 (b) 144 878 5061 (c) 148 785 601 (d) 148 785 01
- 37.🔢 You want to remember the number 803419019. Which chunked version keeps every digit in the same order? (a) 803 419 019 (b) 800 341 9019 (c) 803 419 091 (d) 804 190 19
- 38.📅 The digits 08022013 are a date: day, month, year. Which chunking shows the date? (a) 08/0220/13 (b) 080/220/13 (c) 0802/20/13 (d) 08/02/2013
- 39.🔢 You want to remember the number 9483517915. Which chunked version keeps every digit in the same order? (a) 948 357 1915 (b) 948 351 715 (c) 948 351 79915 (d) 948 351 7915
- 40.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
Answer key
- 153 125 102
- 5
- 3
- 8
- 10/08/1975
- 12/02/1967
- 3053 2116 2297
- numbers and letter lists
- 5
- 119 431 9310
- three chunks, not ten
- 08/02/1998
- 05/03/2002
- 490 700 407
- 319 267 8980
- 13/04/1995
- 23/01/2017
- 21/09/1970
- 7367 1880 8579
- 351 758 2261
- 664 120 882
- 15/01/1959
- 2
- 310 500 483
- 5
- 986 432 1640
- 3785 4096 4089
- 6
- 04/01/2010
- 24/04/1956
- 16/08/2012
- 354 030 0685
- 19 and 47
- 16/05/1994
- 07/05/2002
- 148 785 061
- 803 419 019
- 08/02/2013
- 948 351 7915
- 7
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