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 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 2.📅 The digits 14111986 are a date: day, month, year. Which chunking shows the date? (a) 141/119/86 (b) 14/11/1986 (c) 1411/19/86 (d) 14/1119/86
- 3.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) saying it backwards (d) reading very fast
- 4.🔢 You want to remember the number 2991856011. Which chunked version keeps every digit in the same order? (a) 299 185 56011 (b) 299 856 011 (c) 299 186 5011 (d) 299 185 6011
- 5.📅 The digits 27101999 are a date: day, month, year. Which chunking shows the date? (a) 2710/19/99 (b) 271/019/99 (c) 27/1019/99 (d) 27/10/1999
- 6.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 7.🔢 You want to remember the number 155153465846. Which chunked version keeps every digit in the same order? (a) 1515 5346 5846 (b) 1551 5346 5846 (c) 1551 5346 58446 (d) 1551 3465 846
- 8.📅 The digits 23112014 are a date: day, month, year. Which chunking shows the date? (a) 231/120/14 (b) 23/1120/14 (c) 23/11/2014 (d) 2311/20/14
- 9.🔢 You want to remember the number 250370198. Which chunked version keeps every digit in the same order? (a) 250 301 98 (b) 250 370 1998 (c) 250 370 198 (d) 520 370 198
- 10.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 11.📅 The digits 10122007 are a date: day, month, year. Which chunking shows the date? (a) 101/220/07 (b) 10/12/2007 (c) 1012/20/07 (d) 10/1220/07
- 12.🔢 Chunking works for… (a) only numbers (b) only pictures (c) numbers and letter lists (d) nothing at all
- 13.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 14.🔢 You want to remember the number 775428626. Which chunked version keeps every digit in the same order? (a) 775 428 266 (b) 775 428 626 (c) 775 428 66 (d) 775 442 8626
- 15.📅 The digits 14101999 are a date: day, month, year. Which chunking shows the date? (a) 14/1019/99 (b) 1410/19/99 (c) 14/10/1999 (d) 141/019/99
- 16.🔢 You want to remember the number 4256560214. Which chunked version keeps every digit in the same order? (a) 425 656 0124 (b) 425 656 024 (c) 425 656 0214 (d) 442 565 60214
- 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) three chunks, not ten (d) it has fewer digits
- 18.📅 The digits 12042019 are a date: day, month, year. Which chunking shows the date? (a) 120/420/19 (b) 1204/20/19 (c) 12/0420/19 (d) 12/04/2019
- 19.🔢 You want to remember the number 916811719049. Which chunked version keeps every digit in the same order? (a) 9168 1171 9049 (b) 9168 1117 19049 (c) 9181 1719 049 (d) 9168 1117 9049
- 20.🔢 A chunk is easiest to keep when it… (a) means something to you (b) changes daily (c) is very long (d) has no pattern
- 21.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 22.📅 The digits 25041954 are a date: day, month, year. Which chunking shows the date? (a) 250/419/54 (b) 25/04/1954 (c) 25/0419/54 (d) 2504/19/54
- 23.📅 The digits 15031996 are a date: day, month, year. Which chunking shows the date? (a) 15/03/1996 (b) 150/319/96 (c) 15/0319/96 (d) 1503/19/96
- 24.🔢 You want to remember the number 943648066. Which chunked version keeps every digit in the same order? (a) 943 664 8066 (b) 943 684 066 (c) 943 648 06 (d) 943 648 066
- 25.🔢 You want to remember the number 752942558323. Which chunked version keeps every digit in the same order? (a) 7529 4255 823 (b) 7529 4255 58323 (c) 7529 4255 8323 (d) 5729 4255 8323
- 26.🔢 You want to remember the number 234120847. Which chunked version keeps every digit in the same order? (a) 234 120 84 (b) 233 412 0847 (c) 234 120 847 (d) 234 102 847
- 27.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 28.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 29.🔢 You want to remember the number 319092824777. Which chunked version keeps every digit in the same order? (a) 3190 9282 47777 (b) 3190 9282 4777 (c) 1390 9282 4777 (d) 3190 9282 477
- 30.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 19 and 47 (d) 1 and 947
- 31.🔢 You want to remember the number 428241867251. Which chunked version keeps every digit in the same order? (a) 4282 4186 251 (b) 4282 4186 7215 (c) 4282 4188 67251 (d) 4282 4186 7251
- 32.🔢 You want to remember the number 9771700246. Which chunked version keeps every digit in the same order? (a) 977 170 0264 (b) 977 170 02466 (c) 977 170 0246 (d) 977 170 026
- 33.📅 The digits 15072023 are a date: day, month, year. Which chunking shows the date? (a) 150/720/23 (b) 15/07/2023 (c) 1507/20/23 (d) 15/0720/23
- 34.🔢 You want to remember the number 408350959710. Which chunked version keeps every digit in the same order? (a) 0483 5095 9710 (b) 4035 0959 710 (c) 4083 5095 97110 (d) 4083 5095 9710
- 35.🔢 You want to remember the number 5589163553. Which chunked version keeps every digit in the same order? (a) 558 916 3553 (b) 558 916 355 (c) 559 816 3553 (d) 558 916 35553
- 36.🔢 You want to remember the number 6205740027. Which chunked version keeps every digit in the same order? (a) 260 574 0027 (b) 620 574 40027 (c) 620 740 027 (d) 620 574 0027
- 37.🔢 You want to remember the number 568165611894. Which chunked version keeps every digit in the same order? (a) 5668 1656 11894 (b) 5686 5611 894 (c) 5861 6561 1894 (d) 5681 6561 1894
- 38.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 39.🔢 You want to remember the number 526581010. Which chunked version keeps every digit in the same order? (a) 526 580 10 (b) 552 658 1010 (c) 526 581 010 (d) 526 580 110
- 40.📅 The digits 14101984 are a date: day, month, year. Which chunking shows the date? (a) 141/019/84 (b) 1410/19/84 (c) 14/1019/84 (d) 14/10/1984
Answer key
- 2
- 14/11/1986
- splitting into groups
- 299 185 6011
- 27/10/1999
- 7
- 1551 5346 5846
- 23/11/2014
- 250 370 198
- 9
- 10/12/2007
- numbers and letter lists
- 5
- 775 428 626
- 14/10/1999
- 425 656 0214
- three chunks, not ten
- 12/04/2019
- 9168 1171 9049
- means something to you
- 5
- 25/04/1954
- 15/03/1996
- 943 648 066
- 7529 4255 8323
- 234 120 847
- 2
- 2
- 3190 9282 4777
- 19 and 47
- 4282 4186 7251
- 977 170 0246
- 15/07/2023
- 4083 5095 9710
- 558 916 3553
- 620 574 0027
- 5681 6561 1894
- 5
- 526 581 010
- 14/10/1984
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