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 09081991 are a date: day, month, year. Which chunking shows the date? (a) 09/08/1991 (b) 09/0819/91 (c) 0908/19/91 (d) 090/819/91
- 2.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 3.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only numbers (d) only pictures
- 4.🔢 You want to remember the number 505562579. Which chunked version keeps every digit in the same order? (a) 505 625 79 (b) 505 562 579 (c) 505 562 5579 (d) 505 562 597
- 5.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 6.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
- 7.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is a smaller number (c) it is printed bigger (d) it has fewer digits
- 8.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 1 9 4 7 (d) 19 and 47
- 9.📅 The digits 20021988 are a date: day, month, year. Which chunking shows the date? (a) 200/219/88 (b) 20/0219/88 (c) 2002/19/88 (d) 20/02/1988
- 10.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) splitting into groups (d) reading very fast
- 11.🔢 You want to remember the number 829298096. Which chunked version keeps every digit in the same order? (a) 829 928 096 (b) 829 280 96 (c) 829 298 096 (d) 829 929 8096
- 12.🔢 You want to remember the number 947482163569. Which chunked version keeps every digit in the same order? (a) 9447 8216 3569 (b) 9474 8213 569 (c) 9474 8216 63569 (d) 9474 8216 3569
- 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 307196605. Which chunked version keeps every digit in the same order? (a) 330 719 6605 (b) 307 196 650 (c) 307 196 605 (d) 071 966 05
- 15.🔢 You want to remember the number 5082801288. Which chunked version keeps every digit in the same order? (a) 508 280 1288 (b) 508 208 1288 (c) 502 801 288 (d) 500 828 01288
- 16.🔢 You want to remember the number 526984526274. Which chunked version keeps every digit in the same order? (a) 5269 9845 26274 (b) 5269 8452 274 (c) 2569 8452 6274 (d) 5269 8452 6274
- 17.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 18.📅 The digits 03041978 are a date: day, month, year. Which chunking shows the date? (a) 0304/19/78 (b) 030/419/78 (c) 03/04/1978 (d) 03/0419/78
- 19.📅 The digits 20072014 are a date: day, month, year. Which chunking shows the date? (a) 200/720/14 (b) 20/0720/14 (c) 2007/20/14 (d) 20/07/2014
- 20.📅 The digits 05121962 are a date: day, month, year. Which chunking shows the date? (a) 05/1219/62 (b) 0512/19/62 (c) 05/12/1962 (d) 051/219/62
- 21.🔢 You want to remember the number 5072956441. Which chunked version keeps every digit in the same order? (a) 507 295 66441 (b) 572 956 441 (c) 507 295 6441 (d) 507 296 5441
- 22.🔢 You want to remember the number 3704077784. Which chunked version keeps every digit in the same order? (a) 370 477 784 (b) 370 407 7748 (c) 377 040 77784 (d) 370 407 7784
- 23.🔢 You want to remember the number 856666745. Which chunked version keeps every digit in the same order? (a) 865 666 745 (b) 856 666 745 (c) 856 667 45 (d) 856 666 7745
- 24.🔢 You want to remember the number 646589074. Which chunked version keeps every digit in the same order? (a) 646 589 704 (b) 646 589 074 (c) 646 589 0774 (d) 645 890 74
- 25.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 26.🔢 You want to remember the number 4810571462. Which chunked version keeps every digit in the same order? (a) 481 571 462 (b) 481 057 14662 (c) 481 057 1642 (d) 481 057 1462
- 27.🔢 You want to remember the number 152287033. Which chunked version keeps every digit in the same order? (a) 122 870 33 (b) 152 827 033 (c) 152 228 7033 (d) 152 287 033
- 28.🔢 You want to remember the number 488653092. Which chunked version keeps every digit in the same order? (a) 488 865 3092 (b) 886 530 92 (c) 488 653 029 (d) 488 653 092
- 29.📅 The digits 16021960 are a date: day, month, year. Which chunking shows the date? (a) 16/02/1960 (b) 16/0219/60 (c) 1602/19/60 (d) 160/219/60
- 30.🔢 You want to remember the number 358020583. Which chunked version keeps every digit in the same order? (a) 358 205 83 (b) 358 020 583 (c) 358 020 0583 (d) 358 025 083
- 31.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 32.🔢 You want to remember the number 1809000498. Which chunked version keeps every digit in the same order? (a) 108 900 0498 (b) 118 090 00498 (c) 180 900 0498 (d) 180 900 049
- 33.🔢 You want to remember the number 952325191. Which chunked version keeps every digit in the same order? (a) 952 325 191 (b) 952 332 5191 (c) 953 251 91 (d) 953 225 191
- 34.🔢 You want to remember the number 308090576. Which chunked version keeps every digit in the same order? (a) 308 009 576 (b) 308 090 5776 (c) 308 005 76 (d) 308 090 576
- 35.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 36.🔢 You want to remember the number 810715599. Which chunked version keeps every digit in the same order? (a) 810 751 599 (b) 810 715 599 (c) 107 155 99 (d) 811 071 5599
- 37.📅 The digits 26011954 are a date: day, month, year. Which chunking shows the date? (a) 26/0119/54 (b) 26/01/1954 (c) 260/119/54 (d) 2601/19/54
- 38.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 39.📅 The digits 24061963 are a date: day, month, year. Which chunking shows the date? (a) 24/06/1963 (b) 240/619/63 (c) 2406/19/63 (d) 24/0619/63
- 40.🔢 You want to remember the number 1470334803. Which chunked version keeps every digit in the same order? (a) 147 033 4803 (b) 147 034 803 (c) 144 703 34803 (d) 147 033 8403
Answer key
- 09/08/1991
- 5
- numbers and letter lists
- 505 562 579
- 2
- means something to you
- three chunks, not ten
- 19 and 47
- 20/02/1988
- splitting into groups
- 829 298 096
- 9474 8216 3569
- 3
- 307 196 605
- 508 280 1288
- 5269 8452 6274
- 7
- 03/04/1978
- 20/07/2014
- 05/12/1962
- 507 295 6441
- 370 407 7784
- 856 666 745
- 646 589 074
- 4
- 481 057 1462
- 152 287 033
- 488 653 092
- 16/02/1960
- 358 020 583
- 9
- 180 900 0498
- 952 325 191
- 308 090 576
- 6
- 810 715 599
- 26/01/1954
- 2
- 24/06/1963
- 147 033 4803
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