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 22021963 are a date: day, month, year. Which chunking shows the date? (a) 22/02/1963 (b) 2202/19/63 (c) 22/0219/63 (d) 220/219/63
- 2.📅 The digits 07071989 are a date: day, month, year. Which chunking shows the date? (a) 07/07/1989 (b) 0707/19/89 (c) 07/0719/89 (d) 070/719/89
- 3.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 4.📅 The digits 26111999 are a date: day, month, year. Which chunking shows the date? (a) 26/1119/99 (b) 261/119/99 (c) 2611/19/99 (d) 26/11/1999
- 5.🔢 You want to remember the number 901118749. Which chunked version keeps every digit in the same order? (a) 901 118 479 (b) 900 111 8749 (c) 011 187 49 (d) 901 118 749
- 6.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 7.🔢 You want to remember the number 165910075. Which chunked version keeps every digit in the same order? (a) 165 910 075 (b) 165 910 07 (c) 165 910 0075 (d) 165 910 705
- 8.📅 The digits 16031960 are a date: day, month, year. Which chunking shows the date? (a) 1603/19/60 (b) 160/319/60 (c) 16/0319/60 (d) 16/03/1960
- 9.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 10.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 11.🔢 You want to remember the number 476273080539. Which chunked version keeps every digit in the same order? (a) 4762 7308 00539 (b) 4762 7308 539 (c) 4762 7308 0539 (d) 4726 7308 0539
- 12.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 13.🔢 You want to remember the number 375825026105. Which chunked version keeps every digit in the same order? (a) 3758 2026 105 (b) 3785 2502 6105 (c) 3758 2502 6105 (d) 3758 2502 61055
- 14.🔢 You want to remember the number 722526216362. Which chunked version keeps every digit in the same order? (a) 7225 2621 6362 (b) 7252 6216 362 (c) 7225 6221 6362 (d) 7225 2662 16362
- 15.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) only pictures (d) numbers and letter lists
- 16.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it has fewer digits (c) it is a smaller number (d) three chunks, not ten
- 18.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 19.🔢 You want to remember the number 498102180. Which chunked version keeps every digit in the same order? (a) 498 102 108 (b) 491 021 80 (c) 498 102 2180 (d) 498 102 180
- 20.🔢 You want to remember the number 421224509677. Which chunked version keeps every digit in the same order? (a) 4212 2445 09677 (b) 4212 2450 967 (c) 4212 2405 9677 (d) 4212 2450 9677
- 21.📅 The digits 27081984 are a date: day, month, year. Which chunking shows the date? (a) 2708/19/84 (b) 27/08/1984 (c) 270/819/84 (d) 27/0819/84
- 22.🔢 You want to remember the number 570954558. Which chunked version keeps every digit in the same order? (a) 570 954 558 (b) 570 954 58 (c) 557 095 4558 (d) 570 594 558
- 23.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 24.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 25.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 26.📅 The digits 18042008 are a date: day, month, year. Which chunking shows the date? (a) 180/420/08 (b) 18/0420/08 (c) 1804/20/08 (d) 18/04/2008
- 27.📅 The digits 01052022 are a date: day, month, year. Which chunking shows the date? (a) 0105/20/22 (b) 01/05/2022 (c) 010/520/22 (d) 01/0520/22
- 28.🔢 You want to remember the number 837090645871. Which chunked version keeps every digit in the same order? (a) 8370 9066 45871 (b) 8379 0645 871 (c) 8370 9064 5871 (d) 8730 9064 5871
- 29.🔢 You want to remember the number 281730805711. Which chunked version keeps every digit in the same order? (a) 2817 3080 5711 (b) 2881 7308 05711 (c) 2817 3080 5171 (d) 2817 3080 571
- 30.📅 The digits 26021995 are a date: day, month, year. Which chunking shows the date? (a) 26/0219/95 (b) 260/219/95 (c) 26/02/1995 (d) 2602/19/95
- 31.📅 The digits 24022011 are a date: day, month, year. Which chunking shows the date? (a) 2402/20/11 (b) 24/0220/11 (c) 240/220/11 (d) 24/02/2011
- 32.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) saying it backwards (d) splitting into groups
- 33.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
- 34.🔢 You want to remember the number 386187344. Which chunked version keeps every digit in the same order? (a) 368 187 344 (b) 386 873 44 (c) 386 187 344 (d) 386 187 3444
- 35.🔢 You want to remember the number 866477630452. Which chunked version keeps every digit in the same order? (a) 8664 7763 0452 (b) 8664 7630 452 (c) 8866 4776 30452 (d) 8667 4763 0452
- 36.🔢 You want to remember the number 6123605282. Which chunked version keeps every digit in the same order? (a) 612 360 582 (b) 613 260 5282 (c) 612 360 5282 (d) 612 366 05282
- 37.🔢 You want to remember the number 500121650. Which chunked version keeps every digit in the same order? (a) 500 112 650 (b) 500 122 1650 (c) 500 116 50 (d) 500 121 650
- 38.📅 The digits 02042022 are a date: day, month, year. Which chunking shows the date? (a) 020/420/22 (b) 02/04/2022 (c) 02/0420/22 (d) 0204/20/22
- 39.📅 The digits 06012015 are a date: day, month, year. Which chunking shows the date? (a) 06/01/2015 (b) 060/120/15 (c) 06/0120/15 (d) 0601/20/15
- 40.📅 The digits 17032016 are a date: day, month, year. Which chunking shows the date? (a) 170/320/16 (b) 1703/20/16 (c) 17/03/2016 (d) 17/0320/16
Answer key
- 22/02/1963
- 07/07/1989
- 8
- 26/11/1999
- 901 118 749
- 4
- 165 910 075
- 16/03/1960
- 4
- 4
- 4762 7308 0539
- 5
- 3758 2502 6105
- 7225 2621 6362
- numbers and letter lists
- 5
- three chunks, not ten
- 6
- 498 102 180
- 4212 2450 9677
- 27/08/1984
- 570 954 558
- 3
- 7
- 2
- 18/04/2008
- 01/05/2022
- 8370 9064 5871
- 2817 3080 5711
- 26/02/1995
- 24/02/2011
- splitting into groups
- means something to you
- 386 187 344
- 8664 7763 0452
- 612 360 5282
- 500 121 650
- 02/04/2022
- 06/01/2015
- 17/03/2016
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