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.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 2.🔢 You want to remember the number 334498249. Which chunked version keeps every digit in the same order? (a) 334 449 8249 (b) 343 498 249 (c) 334 498 29 (d) 334 498 249
- 3.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 4.🔢 You want to remember the number 4279047930. Which chunked version keeps every digit in the same order? (a) 427 904 7390 (b) 427 904 793 (c) 427 904 7930 (d) 427 904 79300
- 5.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) splitting into groups (d) saying it backwards
- 6.📅 The digits 14112013 are a date: day, month, year. Which chunking shows the date? (a) 1411/20/13 (b) 141/120/13 (c) 14/11/2013 (d) 14/1120/13
- 7.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) only numbers (d) nothing at all
- 8.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 9.📅 The digits 16111961 are a date: day, month, year. Which chunking shows the date? (a) 16/1119/61 (b) 1611/19/61 (c) 161/119/61 (d) 16/11/1961
- 10.🔢 You want to remember the number 593065945. Which chunked version keeps every digit in the same order? (a) 593 066 5945 (b) 593 056 945 (c) 593 065 94 (d) 593 065 945
- 11.📅 The digits 02121988 are a date: day, month, year. Which chunking shows the date? (a) 021/219/88 (b) 02/12/1988 (c) 0212/19/88 (d) 02/1219/88
- 12.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
- 13.📅 The digits 04041998 are a date: day, month, year. Which chunking shows the date? (a) 0404/19/98 (b) 04/0419/98 (c) 040/419/98 (d) 04/04/1998
- 14.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 15.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
- 16.🔢 You want to remember the number 5436572536. Which chunked version keeps every digit in the same order? (a) 543 657 2563 (b) 543 572 536 (c) 543 657 72536 (d) 543 657 2536
- 17.📅 The digits 07011994 are a date: day, month, year. Which chunking shows the date? (a) 070/119/94 (b) 07/01/1994 (c) 07/0119/94 (d) 0701/19/94
- 18.🔢 You want to remember the number 540255937. Which chunked version keeps every digit in the same order? (a) 540 255 5937 (b) 450 255 937 (c) 540 255 93 (d) 540 255 937
- 19.🔢 You want to remember the number 278094162009. Which chunked version keeps every digit in the same order? (a) 2780 9416 2009 (b) 2780 9146 2009 (c) 2778 0941 62009 (d) 2780 9416 209
- 20.🔢 You want to remember the number 317207028. Which chunked version keeps every digit in the same order? (a) 317 200 728 (b) 317 207 0288 (c) 317 207 28 (d) 317 207 028
- 21.📅 The digits 06102000 are a date: day, month, year. Which chunking shows the date? (a) 0610/20/00 (b) 06/1020/00 (c) 061/020/00 (d) 06/10/2000
- 22.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) changes daily (d) means something to you
- 23.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 24.📅 The digits 03092018 are a date: day, month, year. Which chunking shows the date? (a) 030/920/18 (b) 03/09/2018 (c) 0309/20/18 (d) 03/0920/18
- 25.🔢 You want to remember the number 7480218799. Which chunked version keeps every digit in the same order? (a) 740 821 8799 (b) 748 021 88799 (c) 748 021 8799 (d) 748 218 799
- 26.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 27.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 28.🔢 You want to remember the number 202254908. Which chunked version keeps every digit in the same order? (a) 022 549 08 (b) 202 225 4908 (c) 202 254 908 (d) 202 254 980
- 29.🔢 You want to remember the number 778915145. Which chunked version keeps every digit in the same order? (a) 778 911 545 (b) 778 915 145 (c) 789 151 45 (d) 778 915 1455
- 30.📅 The digits 23031959 are a date: day, month, year. Which chunking shows the date? (a) 230/319/59 (b) 2303/19/59 (c) 23/0319/59 (d) 23/03/1959
- 31.🔢 You want to remember the number 129993995. Which chunked version keeps every digit in the same order? (a) 199 939 95 (b) 129 999 3995 (c) 129 993 995 (d) 192 993 995
- 32.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 33.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 34.🔢 You want to remember the number 513756207. Which chunked version keeps every digit in the same order? (a) 513 756 270 (b) 513 756 207 (c) 513 756 6207 (d) 513 756 27
- 35.📅 The digits 03101999 are a date: day, month, year. Which chunking shows the date? (a) 031/019/99 (b) 03/1019/99 (c) 0310/19/99 (d) 03/10/1999
- 36.🔢 You want to remember the number 127110739605. Which chunked version keeps every digit in the same order? (a) 1271 1073 9605 (b) 1271 1007 39605 (c) 1271 1079 3605 (d) 1211 0739 605
- 37.📅 The digits 03021996 are a date: day, month, year. Which chunking shows the date? (a) 0302/19/96 (b) 03/02/1996 (c) 030/219/96 (d) 03/0219/96
- 38.🔢 You want to remember the number 231732091. Which chunked version keeps every digit in the same order? (a) 231 732 091 (b) 231 732 91 (c) 231 732 0991 (d) 231 372 091
- 39.🔢 You want to remember the number 461478519. Which chunked version keeps every digit in the same order? (a) 416 478 519 (b) 414 785 19 (c) 466 147 8519 (d) 461 478 519
- 40.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
Answer key
- 3
- 334 498 249
- 4
- 427 904 7930
- splitting into groups
- 14/11/2013
- numbers and letter lists
- 4
- 16/11/1961
- 593 065 945
- 02/12/1988
- three chunks, not ten
- 04/04/1998
- 9
- 19 and 47
- 543 657 2536
- 07/01/1994
- 540 255 937
- 2780 9416 2009
- 317 207 028
- 06/10/2000
- means something to you
- 2
- 03/09/2018
- 748 021 8799
- 6
- 4
- 202 254 908
- 778 915 145
- 23/03/1959
- 129 993 995
- 2
- 7
- 513 756 207
- 03/10/1999
- 1271 1073 9605
- 03/02/1996
- 231 732 091
- 461 478 519
- 7
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