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 08042020 are a date: day, month, year. Which chunking shows the date? (a) 08/04/2020 (b) 080/420/20 (c) 0804/20/20 (d) 08/0420/20
- 2.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 3.🔢 A chunk is easiest to keep when it… (a) means something to you (b) changes daily (c) has no pattern (d) is very long
- 4.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 5.📅 The digits 25031950 are a date: day, month, year. Which chunking shows the date? (a) 2503/19/50 (b) 25/0319/50 (c) 250/319/50 (d) 25/03/1950
- 6.🔢 You want to remember the number 100628958604. Which chunked version keeps every digit in the same order? (a) 1006 8295 8604 (b) 1006 2895 864 (c) 1006 2895 8604 (d) 1006 2899 58604
- 7.🔢 You want to remember the number 277983598. Which chunked version keeps every digit in the same order? (a) 727 983 598 (b) 277 983 98 (c) 277 798 3598 (d) 277 983 598
- 8.📅 The digits 09082007 are a date: day, month, year. Which chunking shows the date? (a) 0908/20/07 (b) 09/0820/07 (c) 090/820/07 (d) 09/08/2007
- 9.📅 The digits 17022021 are a date: day, month, year. Which chunking shows the date? (a) 17/02/2021 (b) 17/0220/21 (c) 1702/20/21 (d) 170/220/21
- 10.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it is a smaller number (d) it has fewer digits
- 11.📅 The digits 02031997 are a date: day, month, year. Which chunking shows the date? (a) 02/03/1997 (b) 02/0319/97 (c) 0203/19/97 (d) 020/319/97
- 12.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 19 and 47 (d) 194 and 7
- 13.📅 The digits 08081960 are a date: day, month, year. Which chunking shows the date? (a) 08/08/1960 (b) 080/819/60 (c) 0808/19/60 (d) 08/0819/60
- 14.📅 The digits 23031956 are a date: day, month, year. Which chunking shows the date? (a) 2303/19/56 (b) 23/0319/56 (c) 23/03/1956 (d) 230/319/56
- 15.🔢 You want to remember the number 282272600. Which chunked version keeps every digit in the same order? (a) 228 272 600 (b) 282 272 600 (c) 282 272 6000 (d) 282 726 00
- 16.🔢 You want to remember the number 461413161039. Which chunked version keeps every digit in the same order? (a) 4614 1316 1309 (b) 4614 1311 039 (c) 4614 1316 1039 (d) 4614 4131 61039
- 17.🔢 You want to remember the number 4485693791. Which chunked version keeps every digit in the same order? (a) 444 856 93791 (b) 448 563 9791 (c) 448 569 371 (d) 448 569 3791
- 18.🔢 You want to remember the number 457192204638. Which chunked version keeps every digit in the same order? (a) 5471 9220 4638 (b) 4571 9220 4638 (c) 4571 9220 46638 (d) 4571 9220 463
- 19.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) saying it backwards (d) splitting into groups
- 20.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 21.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 22.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 23.📅 The digits 20041972 are a date: day, month, year. Which chunking shows the date? (a) 20/0419/72 (b) 20/04/1972 (c) 200/419/72 (d) 2004/19/72
- 24.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 25.🔢 You want to remember the number 130991021567. Which chunked version keeps every digit in the same order? (a) 1309 9021 567 (b) 1309 9110 21567 (c) 1309 9012 1567 (d) 1309 9102 1567
- 26.🔢 You want to remember the number 589160609. Which chunked version keeps every digit in the same order? (a) 598 160 609 (b) 589 160 60 (c) 589 160 609 (d) 589 166 0609
- 27.📅 The digits 15061983 are a date: day, month, year. Which chunking shows the date? (a) 1506/19/83 (b) 15/0619/83 (c) 150/619/83 (d) 15/06/1983
- 28.🔢 You want to remember the number 514394078. Which chunked version keeps every digit in the same order? (a) 514 394 078 (b) 543 940 78 (c) 154 394 078 (d) 514 339 4078
- 29.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 30.🔢 You want to remember the number 825048984800. Which chunked version keeps every digit in the same order? (a) 2504 8984 800 (b) 8250 4889 4800 (c) 8250 4898 4800 (d) 8250 4898 48000
- 31.📅 The digits 24082011 are a date: day, month, year. Which chunking shows the date? (a) 240/820/11 (b) 24/0820/11 (c) 2408/20/11 (d) 24/08/2011
- 32.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 33.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 34.📅 The digits 15112015 are a date: day, month, year. Which chunking shows the date? (a) 15/11/2015 (b) 15/1120/15 (c) 1511/20/15 (d) 151/120/15
- 35.🔢 You want to remember the number 478345534. Which chunked version keeps every digit in the same order? (a) 477 834 5534 (b) 473 455 34 (c) 478 345 534 (d) 478 345 354
- 36.🔢 You want to remember the number 414491413050. Which chunked version keeps every digit in the same order? (a) 4144 9113 050 (b) 4144 9141 3050 (c) 4144 1941 3050 (d) 4144 9141 30050
- 37.🔢 You want to remember the number 1838840558. Which chunked version keeps every digit in the same order? (a) 813 884 0558 (b) 838 840 558 (c) 183 884 05588 (d) 183 884 0558
- 38.📅 The digits 08111997 are a date: day, month, year. Which chunking shows the date? (a) 081/119/97 (b) 08/11/1997 (c) 08/1119/97 (d) 0811/19/97
- 39.🔢 You want to remember the number 270437752. Which chunked version keeps every digit in the same order? (a) 720 437 752 (b) 204 377 52 (c) 270 043 7752 (d) 270 437 752
- 40.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
Answer key
- 08/04/2020
- 3
- means something to you
- 4
- 25/03/1950
- 1006 2895 8604
- 277 983 598
- 09/08/2007
- 17/02/2021
- three chunks, not ten
- 02/03/1997
- 19 and 47
- 08/08/1960
- 23/03/1956
- 282 272 600
- 4614 1316 1039
- 448 569 3791
- 4571 9220 4638
- splitting into groups
- 3
- 8
- 3
- 20/04/1972
- 5
- 1309 9102 1567
- 589 160 609
- 15/06/1983
- 514 394 078
- 8
- 8250 4898 4800
- 24/08/2011
- 5
- 6
- 15/11/2015
- 478 345 534
- 4144 9141 3050
- 183 884 0558
- 08/11/1997
- 270 437 752
- 6
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