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.🔢 You want to remember the number 903035815290. Which chunked version keeps every digit in the same order? (a) 9033 0581 5290 (b) 9030 5815 290 (c) 9030 0358 15290 (d) 9030 3581 5290
- 2.📅 The digits 28041952 are a date: day, month, year. Which chunking shows the date? (a) 28/04/1952 (b) 280/419/52 (c) 2804/19/52 (d) 28/0419/52
- 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
- 4.🔢 You want to remember the number 238050188. Which chunked version keeps every digit in the same order? (a) 238 001 88 (b) 238 050 188 (c) 238 050 1888 (d) 238 500 188
- 5.🔢 You want to remember the number 9017304624. Which chunked version keeps every digit in the same order? (a) 907 304 624 (b) 901 730 4624 (c) 901 703 4624 (d) 901 730 04624
- 6.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 7.📅 The digits 20081951 are a date: day, month, year. Which chunking shows the date? (a) 20/0819/51 (b) 2008/19/51 (c) 20/08/1951 (d) 200/819/51
- 8.🔢 You want to remember the number 7584979869. Which chunked version keeps every digit in the same order? (a) 758 497 869 (b) 758 497 98869 (c) 758 497 9869 (d) 578 497 9869
- 9.🔢 You want to remember the number 229568555. Which chunked version keeps every digit in the same order? (a) 229 586 555 (b) 229 568 555 (c) 229 568 55 (d) 222 956 8555
- 10.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 11.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) only pictures (d) nothing at all
- 12.🔢 You want to remember the number 826590209721. Which chunked version keeps every digit in the same order? (a) 8265 0209 721 (b) 8265 9002 09721 (c) 8265 9020 9721 (d) 2865 9020 9721
- 13.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) reading very fast (d) writing it twice
- 14.🔢 You want to remember the number 224538522. Which chunked version keeps every digit in the same order? (a) 224 535 822 (b) 224 538 52 (c) 224 538 5222 (d) 224 538 522
- 15.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 16.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 17.🔢 You want to remember the number 581946199. Which chunked version keeps every digit in the same order? (a) 581 194 6199 (b) 581 946 199 (c) 851 946 199 (d) 581 946 19
- 18.📅 The digits 22121964 are a date: day, month, year. Which chunking shows the date? (a) 22/1219/64 (b) 2212/19/64 (c) 221/219/64 (d) 22/12/1964
- 19.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 20.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 21.📅 The digits 13031969 are a date: day, month, year. Which chunking shows the date? (a) 1303/19/69 (b) 130/319/69 (c) 13/0319/69 (d) 13/03/1969
- 22.📅 The digits 17071990 are a date: day, month, year. Which chunking shows the date? (a) 170/719/90 (b) 1707/19/90 (c) 17/07/1990 (d) 17/0719/90
- 23.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 24.🔢 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
- 25.🔢 You want to remember the number 950150707928. Which chunked version keeps every digit in the same order? (a) 9501 5070 77928 (b) 9501 5070 7928 (c) 9515 0707 928 (d) 9501 5077 0928
- 26.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 27.🔢 You want to remember the number 904748430841. Which chunked version keeps every digit in the same order? (a) 9004 7484 30841 (b) 9047 4843 081 (c) 9407 4843 0841 (d) 9047 4843 0841
- 28.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) means something to you (d) is very long
- 29.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 30.📅 The digits 18072014 are a date: day, month, year. Which chunking shows the date? (a) 1807/20/14 (b) 180/720/14 (c) 18/0720/14 (d) 18/07/2014
- 31.📅 The digits 12081970 are a date: day, month, year. Which chunking shows the date? (a) 120/819/70 (b) 12/08/1970 (c) 12/0819/70 (d) 1208/19/70
- 32.🔢 You want to remember the number 348502207. Which chunked version keeps every digit in the same order? (a) 348 502 027 (b) 485 022 07 (c) 348 500 2207 (d) 348 502 207
- 33.🔢 You want to remember the number 463033555867. Which chunked version keeps every digit in the same order? (a) 4630 3355 867 (b) 4630 3355 5867 (c) 4603 3355 5867 (d) 4630 3335 55867
- 34.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 35.🔢 You want to remember the number 9413754050. Which chunked version keeps every digit in the same order? (a) 914 375 4050 (b) 941 375 4050 (c) 913 754 050 (d) 941 375 40500
- 36.📅 The digits 17082000 are a date: day, month, year. Which chunking shows the date? (a) 170/820/00 (b) 17/08/2000 (c) 17/0820/00 (d) 1708/20/00
- 37.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 38.🔢 You want to remember the number 661454858315. Which chunked version keeps every digit in the same order? (a) 6614 5448 58315 (b) 6615 4485 8315 (c) 6614 5485 835 (d) 6614 5485 8315
- 39.🔢 You want to remember the number 498379310929. Which chunked version keeps every digit in the same order? (a) 4983 7931 0929 (b) 4983 7931 10929 (c) 4983 7931 029 (d) 4983 7931 0992
- 40.🔢 You want to remember the number 7663152030. Which chunked version keeps every digit in the same order? (a) 763 615 2030 (b) 766 315 20030 (c) 763 152 030 (d) 766 315 2030
Answer key
- 9030 3581 5290
- 28/04/1952
- three chunks, not ten
- 238 050 188
- 901 730 4624
- 5
- 20/08/1951
- 758 497 9869
- 229 568 555
- 3
- numbers and letter lists
- 8265 9020 9721
- splitting into groups
- 224 538 522
- 9
- 2
- 581 946 199
- 22/12/1964
- 3
- 2
- 13/03/1969
- 17/07/1990
- 5
- 19 and 47
- 9501 5070 7928
- 4
- 9047 4843 0841
- means something to you
- 7
- 18/07/2014
- 12/08/1970
- 348 502 207
- 4630 3355 5867
- 8
- 941 375 4050
- 17/08/2000
- 5
- 6614 5485 8315
- 4983 7931 0929
- 766 315 2030
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