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 159352122. Which chunked version keeps every digit in the same order? (a) 159 351 22 (b) 159 352 122 (c) 159 532 122 (d) 159 352 1222
- 2.🔢 Chunking works for… (a) only numbers (b) numbers and letter lists (c) nothing at all (d) only pictures
- 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it has fewer digits (c) it is a smaller number (d) it is printed bigger
- 4.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) saying it backwards (d) writing it twice
- 5.🔢 You want to remember the number 7122024110. Which chunked version keeps every digit in the same order? (a) 712 220 24110 (b) 712 202 4110 (c) 712 202 110 (d) 712 202 1410
- 6.📅 The digits 24022021 are a date: day, month, year. Which chunking shows the date? (a) 24/02/2021 (b) 24/0220/21 (c) 240/220/21 (d) 2402/20/21
- 7.🔢 You want to remember the number 610262713. Which chunked version keeps every digit in the same order? (a) 610 262 731 (b) 610 262 2713 (c) 610 262 713 (d) 102 627 13
- 8.📅 The digits 21011976 are a date: day, month, year. Which chunking shows the date? (a) 21/01/1976 (b) 21/0119/76 (c) 2101/19/76 (d) 210/119/76
- 9.📅 The digits 01081962 are a date: day, month, year. Which chunking shows the date? (a) 010/819/62 (b) 01/0819/62 (c) 01/08/1962 (d) 0108/19/62
- 10.🔢 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
- 11.🔢 You want to remember the number 349266251. Which chunked version keeps every digit in the same order? (a) 344 926 6251 (b) 349 266 521 (c) 392 662 51 (d) 349 266 251
- 12.📅 The digits 01032015 are a date: day, month, year. Which chunking shows the date? (a) 010/320/15 (b) 01/0320/15 (c) 0103/20/15 (d) 01/03/2015
- 13.🔢 You want to remember the number 622277601020. Which chunked version keeps every digit in the same order? (a) 6222 7760 0120 (b) 6222 7760 11020 (c) 6222 7760 1020 (d) 6222 7701 020
- 14.🔢 You want to remember the number 450487502493. Which chunked version keeps every digit in the same order? (a) 4504 8750 493 (b) 4504 8750 24993 (c) 4504 7850 2493 (d) 4504 8750 2493
- 15.📅 The digits 08061965 are a date: day, month, year. Which chunking shows the date? (a) 08/0619/65 (b) 0806/19/65 (c) 080/619/65 (d) 08/06/1965
- 16.📅 The digits 19031978 are a date: day, month, year. Which chunking shows the date? (a) 190/319/78 (b) 19/0319/78 (c) 1903/19/78 (d) 19/03/1978
- 17.🔢 You want to remember the number 273063175692. Which chunked version keeps every digit in the same order? (a) 2370 6317 5692 (b) 2730 6315 692 (c) 2730 6317 55692 (d) 2730 6317 5692
- 18.📅 The digits 21071983 are a date: day, month, year. Which chunking shows the date? (a) 21/0719/83 (b) 2107/19/83 (c) 21/07/1983 (d) 210/719/83
- 19.🔢 You want to remember the number 643044323. Which chunked version keeps every digit in the same order? (a) 643 044 323 (b) 644 304 4323 (c) 634 044 323 (d) 643 043 23
- 20.📅 The digits 19021988 are a date: day, month, year. Which chunking shows the date? (a) 190/219/88 (b) 1902/19/88 (c) 19/02/1988 (d) 19/0219/88
- 21.🔢 You want to remember the number 311371608. Which chunked version keeps every digit in the same order? (a) 311 371 608 (b) 311 371 680 (c) 311 376 08 (d) 331 137 1608
- 22.🔢 You want to remember the number 447015905725. Which chunked version keeps every digit in the same order? (a) 4401 5905 725 (b) 4447 0159 05725 (c) 4470 1590 5725 (d) 4471 0590 5725
- 23.📅 The digits 21122007 are a date: day, month, year. Which chunking shows the date? (a) 2112/20/07 (b) 211/220/07 (c) 21/12/2007 (d) 21/1220/07
- 24.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 25.📅 The digits 09121985 are a date: day, month, year. Which chunking shows the date? (a) 09/1219/85 (b) 091/219/85 (c) 09/12/1985 (d) 0912/19/85
- 26.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 27.📅 The digits 27061951 are a date: day, month, year. Which chunking shows the date? (a) 2706/19/51 (b) 270/619/51 (c) 27/06/1951 (d) 27/0619/51
- 28.📅 The digits 02031963 are a date: day, month, year. Which chunking shows the date? (a) 0203/19/63 (b) 02/03/1963 (c) 020/319/63 (d) 02/0319/63
- 29.📅 The digits 08111981 are a date: day, month, year. Which chunking shows the date? (a) 08/1119/81 (b) 0811/19/81 (c) 08/11/1981 (d) 081/119/81
- 30.📅 The digits 23011993 are a date: day, month, year. Which chunking shows the date? (a) 230/119/93 (b) 23/01/1993 (c) 2301/19/93 (d) 23/0119/93
- 31.📅 The digits 10011960 are a date: day, month, year. Which chunking shows the date? (a) 1001/19/60 (b) 10/0119/60 (c) 100/119/60 (d) 10/01/1960
- 32.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 33.🔢 You want to remember the number 347212071341. Which chunked version keeps every digit in the same order? (a) 3742 1207 1341 (b) 3472 1207 1341 (c) 3472 1120 71341 (d) 3721 2071 341
- 34.📅 The digits 21032016 are a date: day, month, year. Which chunking shows the date? (a) 210/320/16 (b) 21/03/2016 (c) 2103/20/16 (d) 21/0320/16
- 35.📅 The digits 01101965 are a date: day, month, year. Which chunking shows the date? (a) 01/1019/65 (b) 0110/19/65 (c) 011/019/65 (d) 01/10/1965
- 36.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 37.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 38.📅 The digits 23071964 are a date: day, month, year. Which chunking shows the date? (a) 2307/19/64 (b) 23/0719/64 (c) 230/719/64 (d) 23/07/1964
- 39.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 40.🔢 You want to remember the number 558257742. Which chunked version keeps every digit in the same order? (a) 558 277 42 (b) 558 257 742 (c) 558 225 7742 (d) 552 857 742
Answer key
- 159 352 122
- numbers and letter lists
- three chunks, not ten
- splitting into groups
- 712 202 4110
- 24/02/2021
- 610 262 713
- 21/01/1976
- 01/08/1962
- 19 and 47
- 349 266 251
- 01/03/2015
- 6222 7760 1020
- 4504 8750 2493
- 08/06/1965
- 19/03/1978
- 2730 6317 5692
- 21/07/1983
- 643 044 323
- 19/02/1988
- 311 371 608
- 4470 1590 5725
- 21/12/2007
- 4
- 09/12/1985
- 2
- 27/06/1951
- 02/03/1963
- 08/11/1981
- 23/01/1993
- 10/01/1960
- 8
- 3472 1207 1341
- 21/03/2016
- 01/10/1965
- 7
- 3
- 23/07/1964
- 5
- 558 257 742
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