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.📅 The digits 21011950 are a date: day, month, year. Which chunking shows the date? (a) 21/0119/50 (b) 2101/19/50 (c) 210/119/50 (d) 21/01/1950
- 2.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
- 4.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 194 and 7 (d) 1 9 4 7
- 5.📅 The digits 02081999 are a date: day, month, year. Which chunking shows the date? (a) 020/819/99 (b) 0208/19/99 (c) 02/0819/99 (d) 02/08/1999
- 6.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
- 7.📅 The digits 20061967 are a date: day, month, year. Which chunking shows the date? (a) 20/0619/67 (b) 2006/19/67 (c) 20/06/1967 (d) 200/619/67
- 8.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 9.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 10.🔢 You want to remember the number 234674153580. Which chunked version keeps every digit in the same order? (a) 2364 7415 3580 (b) 2346 7153 580 (c) 2346 7415 3580 (d) 2234 6741 53580
- 11.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 12.🔢 You want to remember the number 4001339618. Which chunked version keeps every digit in the same order? (a) 400 133 9618 (b) 401 033 9618 (c) 440 013 39618 (d) 400 133 918
- 13.🔢 You want to remember the number 2769049992. Which chunked version keeps every digit in the same order? (a) 276 904 9992 (b) 276 949 992 (c) 276 904 9929 (d) 276 990 49992
- 14.📅 The digits 15101984 are a date: day, month, year. Which chunking shows the date? (a) 1510/19/84 (b) 151/019/84 (c) 15/1019/84 (d) 15/10/1984
- 15.📅 The digits 08032000 are a date: day, month, year. Which chunking shows the date? (a) 08/0320/00 (b) 08/03/2000 (c) 080/320/00 (d) 0803/20/00
- 16.🔢 You want to remember the number 2372938381. Which chunked version keeps every digit in the same order? (a) 237 293 8381 (b) 372 938 381 (c) 232 793 8381 (d) 237 299 38381
- 17.🔢 You want to remember the number 720190225. Which chunked version keeps every digit in the same order? (a) 701 902 25 (b) 720 190 252 (c) 722 019 0225 (d) 720 190 225
- 18.🔢 You want to remember the number 996810127. Which chunked version keeps every digit in the same order? (a) 996 810 127 (b) 996 811 27 (c) 996 881 0127 (d) 969 810 127
- 19.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) only pictures (d) numbers and letter lists
- 20.📅 The digits 23011970 are a date: day, month, year. Which chunking shows the date? (a) 2301/19/70 (b) 23/0119/70 (c) 230/119/70 (d) 23/01/1970
- 21.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 22.🔢 You want to remember the number 883468837926. Which chunked version keeps every digit in the same order? (a) 8843 6883 7926 (b) 8834 6883 926 (c) 8834 6883 7926 (d) 8834 6888 37926
- 23.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 24.🔢 You want to remember the number 914944872. Which chunked version keeps every digit in the same order? (a) 914 944 872 (b) 914 948 72 (c) 911 494 4872 (d) 914 948 472
- 25.📅 The digits 19081994 are a date: day, month, year. Which chunking shows the date? (a) 19/0819/94 (b) 190/819/94 (c) 19/08/1994 (d) 1908/19/94
- 26.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 27.📅 The digits 06121967 are a date: day, month, year. Which chunking shows the date? (a) 06/12/1967 (b) 061/219/67 (c) 06/1219/67 (d) 0612/19/67
- 28.🔢 You want to remember the number 6750018226. Which chunked version keeps every digit in the same order? (a) 675 001 8226 (b) 675 001 226 (c) 675 500 18226 (d) 675 008 1226
- 29.📅 The digits 17051998 are a date: day, month, year. Which chunking shows the date? (a) 17/0519/98 (b) 17/05/1998 (c) 170/519/98 (d) 1705/19/98
- 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 186637268415. Which chunked version keeps every digit in the same order? (a) 1866 3726 8415 (b) 1866 3762 8415 (c) 1663 7268 415 (d) 1186 6372 68415
- 32.📅 The digits 16042003 are a date: day, month, year. Which chunking shows the date? (a) 160/420/03 (b) 16/0420/03 (c) 16/04/2003 (d) 1604/20/03
- 33.📅 The digits 07061960 are a date: day, month, year. Which chunking shows the date? (a) 0706/19/60 (b) 07/0619/60 (c) 070/619/60 (d) 07/06/1960
- 34.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 35.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) changes daily (d) has no pattern
- 36.🔢 You want to remember the number 439271352294. Which chunked version keeps every digit in the same order? (a) 4392 7135 2249 (b) 3927 1352 294 (c) 4392 7135 22944 (d) 4392 7135 2294
- 37.📅 The digits 15121989 are a date: day, month, year. Which chunking shows the date? (a) 15/1219/89 (b) 15/12/1989 (c) 151/219/89 (d) 1512/19/89
- 38.🔢 You want to remember the number 878148407. Which chunked version keeps every digit in the same order? (a) 781 484 07 (b) 878 148 407 (c) 878 814 8407 (d) 878 184 407
- 39.🔢 You want to remember the number 355141182. Which chunked version keeps every digit in the same order? (a) 355 141 182 (b) 335 514 1182 (c) 551 411 82 (d) 355 114 182
- 40.📅 The digits 23011996 are a date: day, month, year. Which chunking shows the date? (a) 230/119/96 (b) 23/01/1996 (c) 23/0119/96 (d) 2301/19/96
Answer key
- 21/01/1950
- 6
- three chunks, not ten
- 19 and 47
- 02/08/1999
- splitting into groups
- 20/06/1967
- 8
- 9
- 2346 7415 3580
- 2
- 400 133 9618
- 276 904 9992
- 15/10/1984
- 08/03/2000
- 237 293 8381
- 720 190 225
- 996 810 127
- numbers and letter lists
- 23/01/1970
- 3
- 8834 6883 7926
- 7
- 914 944 872
- 19/08/1994
- 8
- 06/12/1967
- 675 001 8226
- 17/05/1998
- 5
- 1866 3726 8415
- 16/04/2003
- 07/06/1960
- 3
- means something to you
- 4392 7135 2294
- 15/12/1989
- 878 148 407
- 355 141 182
- 23/01/1996
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