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 25011998 are a date: day, month, year. Which chunking shows the date? (a) 250/119/98 (b) 2501/19/98 (c) 25/0119/98 (d) 25/01/1998
- 2.🔢 You want to remember the number 233676481. Which chunked version keeps every digit in the same order? (a) 233 766 481 (b) 233 676 4811 (c) 236 764 81 (d) 233 676 481
- 3.📅 The digits 19041982 are a date: day, month, year. Which chunking shows the date? (a) 190/419/82 (b) 1904/19/82 (c) 19/04/1982 (d) 19/0419/82
- 4.📅 The digits 14082025 are a date: day, month, year. Which chunking shows the date? (a) 1408/20/25 (b) 14/08/2025 (c) 140/820/25 (d) 14/0820/25
- 5.📅 The digits 13092010 are a date: day, month, year. Which chunking shows the date? (a) 13/09/2010 (b) 130/920/10 (c) 1309/20/10 (d) 13/0920/10
- 6.🔢 You want to remember the number 4613490161. Which chunked version keeps every digit in the same order? (a) 461 349 0611 (b) 461 349 00161 (c) 413 490 161 (d) 461 349 0161
- 7.📅 The digits 28041954 are a date: day, month, year. Which chunking shows the date? (a) 28/0419/54 (b) 2804/19/54 (c) 280/419/54 (d) 28/04/1954
- 8.📅 The digits 22071975 are a date: day, month, year. Which chunking shows the date? (a) 220/719/75 (b) 22/07/1975 (c) 22/0719/75 (d) 2207/19/75
- 9.🔢 You want to remember the number 722079032779. Which chunked version keeps every digit in the same order? (a) 7220 7902 3779 (b) 7220 7903 2779 (c) 7220 7903 32779 (d) 2207 9032 779
- 10.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 11.📅 The digits 05112003 are a date: day, month, year. Which chunking shows the date? (a) 05/1120/03 (b) 0511/20/03 (c) 051/120/03 (d) 05/11/2003
- 12.📅 The digits 07091950 are a date: day, month, year. Which chunking shows the date? (a) 07/0919/50 (b) 070/919/50 (c) 07/09/1950 (d) 0709/19/50
- 13.📅 The digits 06021970 are a date: day, month, year. Which chunking shows the date? (a) 06/02/1970 (b) 06/0219/70 (c) 060/219/70 (d) 0602/19/70
- 14.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it has fewer digits (c) it is a smaller number (d) three chunks, not ten
- 15.🔢 A chunk is easiest to keep when it… (a) means something to you (b) is very long (c) has no pattern (d) changes daily
- 16.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) saying it backwards (d) reading very fast
- 17.📅 The digits 10021966 are a date: day, month, year. Which chunking shows the date? (a) 10/0219/66 (b) 1002/19/66 (c) 10/02/1966 (d) 100/219/66
- 18.🔢 Chunking works for… (a) only pictures (b) only numbers (c) nothing at all (d) numbers and letter lists
- 19.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 20.🔢 You want to remember the number 4392993803. Which chunked version keeps every digit in the same order? (a) 439 299 3803 (b) 439 993 803 (c) 439 293 9803 (d) 439 229 93803
- 21.📅 The digits 12032015 are a date: day, month, year. Which chunking shows the date? (a) 12/0320/15 (b) 1203/20/15 (c) 12/03/2015 (d) 120/320/15
- 22.🔢 You want to remember the number 735911852. Which chunked version keeps every digit in the same order? (a) 375 911 852 (b) 735 911 8852 (c) 759 118 52 (d) 735 911 852
- 23.🔢 You want to remember the number 423766102. Which chunked version keeps every digit in the same order? (a) 243 766 102 (b) 423 766 102 (c) 423 761 02 (d) 423 766 1002
- 24.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 25.🔢 You want to remember the number 226920914927. Which chunked version keeps every digit in the same order? (a) 2269 2091 4927 (b) 2269 0914 927 (c) 2269 2099 14927 (d) 2269 0291 4927
- 26.📅 The digits 23061975 are a date: day, month, year. Which chunking shows the date? (a) 23/0619/75 (b) 2306/19/75 (c) 23/06/1975 (d) 230/619/75
- 27.🔢 You want to remember the number 852212546618. Which chunked version keeps every digit in the same order? (a) 8522 1546 618 (b) 8522 1255 46618 (c) 8521 2254 6618 (d) 8522 1254 6618
- 28.📅 The digits 11021987 are a date: day, month, year. Which chunking shows the date? (a) 110/219/87 (b) 11/0219/87 (c) 1102/19/87 (d) 11/02/1987
- 29.🔢 You want to remember the number 818570137. Which chunked version keeps every digit in the same order? (a) 818 570 317 (b) 818 570 137 (c) 185 701 37 (d) 811 857 0137
- 30.🔢 You want to remember the number 762565072. Which chunked version keeps every digit in the same order? (a) 762 556 5072 (b) 625 650 72 (c) 765 265 072 (d) 762 565 072
- 31.📅 The digits 02011997 are a date: day, month, year. Which chunking shows the date? (a) 0201/19/97 (b) 02/0119/97 (c) 020/119/97 (d) 02/01/1997
- 32.📅 The digits 07071988 are a date: day, month, year. Which chunking shows the date? (a) 07/0719/88 (b) 07/07/1988 (c) 070/719/88 (d) 0707/19/88
- 33.📅 The digits 23081969 are a date: day, month, year. Which chunking shows the date? (a) 2308/19/69 (b) 23/08/1969 (c) 23/0819/69 (d) 230/819/69
- 34.📅 The digits 18041991 are a date: day, month, year. Which chunking shows the date? (a) 18/0419/91 (b) 180/419/91 (c) 1804/19/91 (d) 18/04/1991
- 35.🔢 You want to remember the number 389123138. Which chunked version keeps every digit in the same order? (a) 389 132 138 (b) 389 131 38 (c) 389 123 138 (d) 389 123 1338
- 36.📅 The digits 09062023 are a date: day, month, year. Which chunking shows the date? (a) 09/0620/23 (b) 0906/20/23 (c) 09/06/2023 (d) 090/620/23
- 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 900150575466. Which chunked version keeps every digit in the same order? (a) 9010 5057 5466 (b) 9001 5575 466 (c) 9001 5057 5466 (d) 9000 1505 75466
- 39.🔢 You want to remember the number 8843318021. Which chunked version keeps every digit in the same order? (a) 843 318 021 (b) 884 331 88021 (c) 884 331 0821 (d) 884 331 8021
- 40.📅 The digits 27102023 are a date: day, month, year. Which chunking shows the date? (a) 2710/20/23 (b) 27/10/2023 (c) 271/020/23 (d) 27/1020/23
Answer key
- 25/01/1998
- 233 676 481
- 19/04/1982
- 14/08/2025
- 13/09/2010
- 461 349 0161
- 28/04/1954
- 22/07/1975
- 7220 7903 2779
- 3
- 05/11/2003
- 07/09/1950
- 06/02/1970
- three chunks, not ten
- means something to you
- splitting into groups
- 10/02/1966
- numbers and letter lists
- 5
- 439 299 3803
- 12/03/2015
- 735 911 852
- 423 766 102
- 4
- 2269 2091 4927
- 23/06/1975
- 8522 1254 6618
- 11/02/1987
- 818 570 137
- 762 565 072
- 02/01/1997
- 07/07/1988
- 23/08/1969
- 18/04/1991
- 389 123 138
- 09/06/2023
- 5
- 9001 5057 5466
- 884 331 8021
- 27/10/2023
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