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 907270938. Which chunked version keeps every digit in the same order? (a) 900 727 0938 (b) 902 770 938 (c) 907 270 938 (d) 907 209 38
- 2.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 3.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 4.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 5.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 6.🔢 You want to remember the number 4806700366. Which chunked version keeps every digit in the same order? (a) 480 067 00366 (b) 480 670 3066 (c) 480 670 0366 (d) 480 600 366
- 7.🔢 You want to remember the number 420105381922. Which chunked version keeps every digit in the same order? (a) 4201 0538 1922 (b) 4201 0538 192 (c) 4200 1053 81922 (d) 4201 5038 1922
- 8.🔢 You want to remember the number 262810278. Which chunked version keeps every digit in the same order? (a) 262 810 278 (b) 628 102 78 (c) 262 881 0278 (d) 226 810 278
- 9.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) three chunks, not ten (d) it is a smaller number
- 10.📅 The digits 19112010 are a date: day, month, year. Which chunking shows the date? (a) 19/1120/10 (b) 19/11/2010 (c) 1911/20/10 (d) 191/120/10
- 11.🔢 You want to remember the number 552541164937. Which chunked version keeps every digit in the same order? (a) 5525 4161 4937 (b) 5554 1164 937 (c) 5525 4116 4937 (d) 5552 5411 64937
- 12.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 13.📅 The digits 05031983 are a date: day, month, year. Which chunking shows the date? (a) 05/0319/83 (b) 05/03/1983 (c) 0503/19/83 (d) 050/319/83
- 14.🔢 You want to remember the number 443161143848. Which chunked version keeps every digit in the same order? (a) 4436 1114 3848 (b) 4316 1143 848 (c) 4431 6114 3848 (d) 4431 6114 38488
- 15.🔢 You want to remember the number 628760708040. Which chunked version keeps every digit in the same order? (a) 6287 6070 8004 (b) 6287 0708 040 (c) 6287 6070 8040 (d) 6287 6077 08040
- 16.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) saying it backwards (d) splitting into groups
- 17.🔢 You want to remember the number 2798103347. Which chunked version keeps every digit in the same order? (a) 279 810 3347 (b) 297 810 3347 (c) 279 813 347 (d) 279 810 33347
- 18.📅 The digits 07031959 are a date: day, month, year. Which chunking shows the date? (a) 07/03/1959 (b) 07/0319/59 (c) 0703/19/59 (d) 070/319/59
- 19.📅 The digits 04011984 are a date: day, month, year. Which chunking shows the date? (a) 0401/19/84 (b) 04/0119/84 (c) 040/119/84 (d) 04/01/1984
- 20.📅 The digits 18091961 are a date: day, month, year. Which chunking shows the date? (a) 18/0919/61 (b) 180/919/61 (c) 18/09/1961 (d) 1809/19/61
- 21.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 22.🔢 You want to remember the number 126218632. Which chunked version keeps every digit in the same order? (a) 122 618 632 (b) 126 218 632 (c) 126 286 32 (d) 122 621 8632
- 23.📅 The digits 22081977 are a date: day, month, year. Which chunking shows the date? (a) 22/08/1977 (b) 2208/19/77 (c) 22/0819/77 (d) 220/819/77
- 24.🔢 You want to remember the number 470016220. Which chunked version keeps every digit in the same order? (a) 470 016 20 (b) 470 001 6220 (c) 470 106 220 (d) 470 016 220
- 25.🔢 You want to remember the number 835589342986. Which chunked version keeps every digit in the same order? (a) 8355 8934 2986 (b) 8355 9834 2986 (c) 8355 8934 29886 (d) 8355 8934 298
- 26.📅 The digits 27012006 are a date: day, month, year. Which chunking shows the date? (a) 270/120/06 (b) 27/0120/06 (c) 2701/20/06 (d) 27/01/2006
- 27.🔢 You want to remember the number 174249019. Which chunked version keeps every digit in the same order? (a) 174 249 091 (b) 174 249 0119 (c) 174 249 01 (d) 174 249 019
- 28.📅 The digits 23091973 are a date: day, month, year. Which chunking shows the date? (a) 2309/19/73 (b) 230/919/73 (c) 23/0919/73 (d) 23/09/1973
- 29.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 1 9 4 7 (d) 194 and 7
- 30.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 31.🔢 You want to remember the number 796816715. Which chunked version keeps every digit in the same order? (a) 796 816 75 (b) 798 616 715 (c) 796 816 715 (d) 796 811 6715
- 32.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 33.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 34.📅 The digits 22012007 are a date: day, month, year. Which chunking shows the date? (a) 2201/20/07 (b) 220/120/07 (c) 22/0120/07 (d) 22/01/2007
- 35.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 36.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 37.🔢 You want to remember the number 980896657. Which chunked version keeps every digit in the same order? (a) 980 896 6657 (b) 980 896 567 (c) 980 896 657 (d) 980 966 57
- 38.📅 The digits 03082018 are a date: day, month, year. Which chunking shows the date? (a) 0308/20/18 (b) 03/08/2018 (c) 03/0820/18 (d) 030/820/18
- 39.🔢 You want to remember the number 7525441186. Which chunked version keeps every digit in the same order? (a) 752 544 1186 (b) 752 544 41186 (c) 725 544 1186 (d) 752 544 186
- 40.📅 The digits 26051973 are a date: day, month, year. Which chunking shows the date? (a) 26/05/1973 (b) 260/519/73 (c) 26/0519/73 (d) 2605/19/73
Answer key
- 907 270 938
- 5
- 2
- 2
- 5
- 480 670 0366
- 4201 0538 1922
- 262 810 278
- three chunks, not ten
- 19/11/2010
- 5525 4116 4937
- 4
- 05/03/1983
- 4431 6114 3848
- 6287 6070 8040
- splitting into groups
- 279 810 3347
- 07/03/1959
- 04/01/1984
- 18/09/1961
- 4
- 126 218 632
- 22/08/1977
- 470 016 220
- 8355 8934 2986
- 27/01/2006
- 174 249 019
- 23/09/1973
- 19 and 47
- 5
- 796 816 715
- 7
- 8
- 22/01/2007
- 3
- 4
- 980 896 657
- 03/08/2018
- 752 544 1186
- 26/05/1973
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