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 3484142874. Which chunked version keeps every digit in the same order? (a) 348 412 874 (b) 348 414 28874 (c) 348 414 2874 (d) 348 414 2784
- 2.🔢 You want to remember the number 462892582914. Which chunked version keeps every digit in the same order? (a) 4629 2582 914 (b) 4628 9258 2194 (c) 4628 9925 82914 (d) 4628 9258 2914
- 3.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) only numbers (d) nothing at all
- 4.🔢 You want to remember the number 5450632708. Which chunked version keeps every digit in the same order? (a) 554 506 32708 (b) 545 603 2708 (c) 545 063 2708 (d) 545 063 278
- 5.📅 The digits 11112001 are a date: day, month, year. Which chunking shows the date? (a) 11/1120/01 (b) 111/120/01 (c) 1111/20/01 (d) 11/11/2001
- 6.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 7.📅 The digits 01101983 are a date: day, month, year. Which chunking shows the date? (a) 01/10/1983 (b) 01/1019/83 (c) 0110/19/83 (d) 011/019/83
- 8.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 9.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
- 10.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 11.🔢 You want to remember the number 6839574097. Which chunked version keeps every digit in the same order? (a) 688 395 74097 (b) 683 574 097 (c) 689 357 4097 (d) 683 957 4097
- 12.🔢 You want to remember the number 6371121692. Which chunked version keeps every digit in the same order? (a) 637 111 692 (b) 637 112 6192 (c) 637 711 21692 (d) 637 112 1692
- 13.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it is a smaller number (d) it has fewer digits
- 14.🔢 You want to remember the number 145328427. Which chunked version keeps every digit in the same order? (a) 145 532 8427 (b) 415 328 427 (c) 145 328 427 (d) 145 328 47
- 15.📅 The digits 05031953 are a date: day, month, year. Which chunking shows the date? (a) 05/0319/53 (b) 0503/19/53 (c) 05/03/1953 (d) 050/319/53
- 16.📅 The digits 26031970 are a date: day, month, year. Which chunking shows the date? (a) 26/03/1970 (b) 26/0319/70 (c) 260/319/70 (d) 2603/19/70
- 17.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) means something to you (d) is very long
- 18.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 19.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 20.🔢 You want to remember the number 4861779048. Which chunked version keeps every digit in the same order? (a) 486 177 9048 (b) 486 177 948 (c) 468 177 9048 (d) 486 177 79048
- 21.📅 The digits 21041991 are a date: day, month, year. Which chunking shows the date? (a) 21/0419/91 (b) 210/419/91 (c) 21/04/1991 (d) 2104/19/91
- 22.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 23.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 24.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 25.🔢 You want to remember the number 9680436505. Which chunked version keeps every digit in the same order? (a) 968 043 6550 (b) 968 046 505 (c) 968 043 36505 (d) 968 043 6505
- 26.🔢 You want to remember the number 289430107. Which chunked version keeps every digit in the same order? (a) 284 301 07 (b) 289 430 1007 (c) 829 430 107 (d) 289 430 107
- 27.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 28.🔢 You want to remember the number 8288913572. Which chunked version keeps every digit in the same order? (a) 828 981 3572 (b) 828 889 13572 (c) 828 891 3572 (d) 828 913 572
- 29.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 30.🔢 You want to remember the number 132166238712. Which chunked version keeps every digit in the same order? (a) 1321 6623 8721 (b) 1321 6638 712 (c) 1321 6623 87122 (d) 1321 6623 8712
- 31.📅 The digits 03082012 are a date: day, month, year. Which chunking shows the date? (a) 03/08/2012 (b) 030/820/12 (c) 03/0820/12 (d) 0308/20/12
- 32.🔢 You want to remember the number 998011769792. Which chunked version keeps every digit in the same order? (a) 9980 1176 979 (b) 9980 1176 97922 (c) 9980 1716 9792 (d) 9980 1176 9792
- 33.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 19 and 47 (d) 1 9 4 7
- 34.🔢 You want to remember the number 824496853309. Which chunked version keeps every digit in the same order? (a) 2844 9685 3309 (b) 8244 9685 3309 (c) 8249 6853 309 (d) 8244 9685 53309
- 35.🔢 You want to remember the number 621451541. Which chunked version keeps every digit in the same order? (a) 621 451 1541 (b) 612 451 541 (c) 621 451 541 (d) 614 515 41
- 36.📅 The digits 06092017 are a date: day, month, year. Which chunking shows the date? (a) 06/0920/17 (b) 0609/20/17 (c) 060/920/17 (d) 06/09/2017
- 37.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 38.📅 The digits 17052011 are a date: day, month, year. Which chunking shows the date? (a) 17/0520/11 (b) 1705/20/11 (c) 17/05/2011 (d) 170/520/11
- 39.🔢 You want to remember the number 462944454012. Which chunked version keeps every digit in the same order? (a) 4692 4445 4012 (b) 4629 4445 4012 (c) 4629 4454 012 (d) 4629 4444 54012
- 40.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
Answer key
- 348 414 2874
- 4628 9258 2914
- numbers and letter lists
- 545 063 2708
- 11/11/2001
- 4
- 01/10/1983
- 2
- splitting into groups
- 3
- 683 957 4097
- 637 112 1692
- three chunks, not ten
- 145 328 427
- 05/03/1953
- 26/03/1970
- means something to you
- 9
- 6
- 486 177 9048
- 21/04/1991
- 4
- 4
- 2
- 968 043 6505
- 289 430 107
- 5
- 828 891 3572
- 3
- 1321 6623 8712
- 03/08/2012
- 9980 1176 9792
- 19 and 47
- 8244 9685 3309
- 621 451 541
- 06/09/2017
- 8
- 17/05/2011
- 4629 4445 4012
- 3
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