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 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 2.🔢 What is chunking? (a) saying it backwards (b) writing it twice (c) reading very fast (d) splitting into groups
- 3.🔢 You want to remember the number 9236749649. Which chunked version keeps every digit in the same order? (a) 923 674 9469 (b) 923 674 99649 (c) 923 674 649 (d) 923 674 9649
- 4.🔢 Chunking works for… (a) only pictures (b) only numbers (c) numbers and letter lists (d) nothing at all
- 5.🔢 You want to remember the number 660576091. Which chunked version keeps every digit in the same order? (a) 605 760 91 (b) 660 057 6091 (c) 665 076 091 (d) 660 576 091
- 6.📅 The digits 17081999 are a date: day, month, year. Which chunking shows the date? (a) 170/819/99 (b) 1708/19/99 (c) 17/08/1999 (d) 17/0819/99
- 7.🔢 You want to remember the number 8535118797. Which chunked version keeps every digit in the same order? (a) 853 511 18797 (b) 853 518 797 (c) 853 511 8797 (d) 853 151 8797
- 8.🔢 You want to remember the number 2625029488. Which chunked version keeps every digit in the same order? (a) 262 502 9488 (b) 262 529 488 (c) 262 550 29488 (d) 262 502 9848
- 9.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 10.📅 The digits 18021982 are a date: day, month, year. Which chunking shows the date? (a) 180/219/82 (b) 18/0219/82 (c) 1802/19/82 (d) 18/02/1982
- 11.🔢 You want to remember the number 420488508. Which chunked version keeps every digit in the same order? (a) 420 448 8508 (b) 420 488 508 (c) 420 485 08 (d) 420 848 508
- 12.🔢 You want to remember the number 698761937663. Which chunked version keeps every digit in the same order? (a) 6987 6193 76663 (b) 6987 6197 663 (c) 6987 6139 7663 (d) 6987 6193 7663
- 13.📅 The digits 28121966 are a date: day, month, year. Which chunking shows the date? (a) 28/1219/66 (b) 28/12/1966 (c) 2812/19/66 (d) 281/219/66
- 14.🔢 You want to remember the number 2934038728. Which chunked version keeps every digit in the same order? (a) 293 430 8728 (b) 293 403 8728 (c) 229 340 38728 (d) 294 038 728
- 15.🔢 You want to remember the number 301422777. Which chunked version keeps every digit in the same order? (a) 014 227 77 (b) 031 422 777 (c) 301 422 2777 (d) 301 422 777
- 16.🔢 You want to remember the number 683600543806. Which chunked version keeps every digit in the same order? (a) 6836 0045 3806 (b) 6836 0054 38066 (c) 6836 0054 306 (d) 6836 0054 3806
- 17.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 18.🔢 You want to remember the number 254158135059. Which chunked version keeps every digit in the same order? (a) 2541 5813 5059 (b) 2541 5881 35059 (c) 2545 1813 5059 (d) 2541 5835 059
- 19.🔢 You want to remember the number 839340280. Which chunked version keeps every digit in the same order? (a) 839 340 80 (b) 839 340 280 (c) 839 304 280 (d) 839 340 2280
- 20.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 21.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 22.📅 The digits 12111990 are a date: day, month, year. Which chunking shows the date? (a) 12/1119/90 (b) 1211/19/90 (c) 12/11/1990 (d) 121/119/90
- 23.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 24.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 25.🔢 You want to remember the number 124019045037. Which chunked version keeps every digit in the same order? (a) 1201 9045 037 (b) 1240 1990 45037 (c) 1420 1904 5037 (d) 1240 1904 5037
- 26.📅 The digits 28092015 are a date: day, month, year. Which chunking shows the date? (a) 28/0920/15 (b) 28/09/2015 (c) 2809/20/15 (d) 280/920/15
- 27.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 28.📅 The digits 02081962 are a date: day, month, year. Which chunking shows the date? (a) 02/08/1962 (b) 02/0819/62 (c) 020/819/62 (d) 0208/19/62
- 29.📅 The digits 20061982 are a date: day, month, year. Which chunking shows the date? (a) 200/619/82 (b) 2006/19/82 (c) 20/0619/82 (d) 20/06/1982
- 30.🔢 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
- 31.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 32.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 33.📅 The digits 04041962 are a date: day, month, year. Which chunking shows the date? (a) 04/04/1962 (b) 04/0419/62 (c) 040/419/62 (d) 0404/19/62
- 34.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
- 35.🔢 You want to remember the number 359720199. Which chunked version keeps every digit in the same order? (a) 397 201 99 (b) 359 702 199 (c) 359 720 199 (d) 359 720 1199
- 36.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 194 and 7 (d) 19 and 47
- 37.📅 The digits 02081974 are a date: day, month, year. Which chunking shows the date? (a) 02/08/1974 (b) 020/819/74 (c) 0208/19/74 (d) 02/0819/74
- 38.🔢 You want to remember the number 613594184. Which chunked version keeps every digit in the same order? (a) 613 359 4184 (b) 613 594 148 (c) 613 594 184 (d) 613 591 84
- 39.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 40.🔢 You want to remember the number 6732591034. Which chunked version keeps every digit in the same order? (a) 673 259 10344 (b) 672 359 1034 (c) 673 259 1034 (d) 673 291 034
Answer key
- 4
- splitting into groups
- 923 674 9649
- numbers and letter lists
- 660 576 091
- 17/08/1999
- 853 511 8797
- 262 502 9488
- 5
- 18/02/1982
- 420 488 508
- 6987 6193 7663
- 28/12/1966
- 293 403 8728
- 301 422 777
- 6836 0054 3806
- 8
- 2541 5813 5059
- 839 340 280
- 2
- 5
- 12/11/1990
- 6
- 3
- 1240 1904 5037
- 28/09/2015
- 7
- 02/08/1962
- 20/06/1982
- three chunks, not ten
- 3
- 5
- 04/04/1962
- means something to you
- 359 720 199
- 19 and 47
- 02/08/1974
- 613 594 184
- 8
- 673 259 1034
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