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.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) it is a smaller number (d) three chunks, not ten
- 2.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) changes daily (d) is very long
- 3.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 4.🔢 You want to remember the number 781597043. Which chunked version keeps every digit in the same order? (a) 781 570 43 (b) 781 597 043 (c) 788 159 7043 (d) 781 597 403
- 5.🔢 You want to remember the number 6535670467. Which chunked version keeps every digit in the same order? (a) 653 567 00467 (b) 653 657 0467 (c) 653 567 0467 (d) 653 560 467
- 6.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) writing it twice (d) saying it backwards
- 7.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) nothing at all (d) only numbers
- 8.🔢 You want to remember the number 671682350021. Which chunked version keeps every digit in the same order? (a) 6716 8235 0012 (b) 6716 8235 0021 (c) 6771 6823 50021 (d) 6768 2350 021
- 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 03012017 are a date: day, month, year. Which chunking shows the date? (a) 030/120/17 (b) 0301/20/17 (c) 03/0120/17 (d) 03/01/2017
- 11.🔢 You want to remember the number 5075394466. Which chunked version keeps every digit in the same order? (a) 505 394 466 (b) 507 533 94466 (c) 507 359 4466 (d) 507 539 4466
- 12.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 13.🔢 You want to remember the number 848259598754. Which chunked version keeps every digit in the same order? (a) 8482 9598 754 (b) 8482 5959 8754 (c) 8428 5959 8754 (d) 8482 2595 98754
- 14.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 15.🔢 You want to remember the number 722839030. Which chunked version keeps every digit in the same order? (a) 722 893 030 (b) 722 833 9030 (c) 722 839 030 (d) 722 839 30
- 16.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 17.📅 The digits 06021952 are a date: day, month, year. Which chunking shows the date? (a) 0602/19/52 (b) 060/219/52 (c) 06/0219/52 (d) 06/02/1952
- 18.🔢 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
- 19.📅 The digits 02071986 are a date: day, month, year. Which chunking shows the date? (a) 02/07/1986 (b) 0207/19/86 (c) 02/0719/86 (d) 020/719/86
- 20.🔢 You want to remember the number 507240482. Which chunked version keeps every digit in the same order? (a) 507 240 0482 (b) 507 240 482 (c) 572 404 82 (d) 507 240 428
- 21.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 22.🔢 You want to remember the number 651825027. Which chunked version keeps every digit in the same order? (a) 651 825 027 (b) 651 825 072 (c) 651 820 27 (d) 651 825 0277
- 23.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 24.🔢 You want to remember the number 710755219. Which chunked version keeps every digit in the same order? (a) 710 755 2219 (b) 710 755 291 (c) 710 755 19 (d) 710 755 219
- 25.🔢 You want to remember the number 885110833812. Which chunked version keeps every digit in the same order? (a) 8511 0833 812 (b) 8851 1038 3812 (c) 8851 1083 38812 (d) 8851 1083 3812
- 26.🔢 You want to remember the number 697480113. Which chunked version keeps every digit in the same order? (a) 974 801 13 (b) 697 480 113 (c) 669 748 0113 (d) 967 480 113
- 27.📅 The digits 22021951 are a date: day, month, year. Which chunking shows the date? (a) 2202/19/51 (b) 22/0219/51 (c) 220/219/51 (d) 22/02/1951
- 28.🔢 You want to remember the number 3474365142. Which chunked version keeps every digit in the same order? (a) 344 743 65142 (b) 347 465 142 (c) 374 436 5142 (d) 347 436 5142
- 29.🔢 You want to remember the number 843440393. Which chunked version keeps every digit in the same order? (a) 884 344 0393 (b) 843 403 93 (c) 843 440 393 (d) 843 440 933
- 30.📅 The digits 02032006 are a date: day, month, year. Which chunking shows the date? (a) 02/03/2006 (b) 020/320/06 (c) 02/0320/06 (d) 0203/20/06
- 31.📅 The digits 07031961 are a date: day, month, year. Which chunking shows the date? (a) 0703/19/61 (b) 070/319/61 (c) 07/03/1961 (d) 07/0319/61
- 32.📅 The digits 27092016 are a date: day, month, year. Which chunking shows the date? (a) 270/920/16 (b) 2709/20/16 (c) 27/09/2016 (d) 27/0920/16
- 33.🔢 You want to remember the number 3860011249. Which chunked version keeps every digit in the same order? (a) 386 001 1249 (b) 386 001 249 (c) 386 000 11249 (d) 368 001 1249
- 34.🔢 You want to remember the number 3303907592. Which chunked version keeps every digit in the same order? (a) 330 390 7529 (b) 330 397 592 (c) 330 390 7592 (d) 333 039 07592
- 35.🔢 You want to remember the number 724714396. Which chunked version keeps every digit in the same order? (a) 724 714 36 (b) 724 711 4396 (c) 727 414 396 (d) 724 714 396
- 36.🔢 You want to remember the number 579085885514. Which chunked version keeps every digit in the same order? (a) 5790 8588 5514 (b) 5790 8858 85514 (c) 5790 5888 5514 (d) 5790 5885 514
- 37.📅 The digits 25071955 are a date: day, month, year. Which chunking shows the date? (a) 25/07/1955 (b) 250/719/55 (c) 25/0719/55 (d) 2507/19/55
- 38.📅 The digits 08021997 are a date: day, month, year. Which chunking shows the date? (a) 0802/19/97 (b) 08/0219/97 (c) 080/219/97 (d) 08/02/1997
- 39.🔢 You want to remember the number 281658559913. Which chunked version keeps every digit in the same order? (a) 2816 5585 59913 (b) 2816 8559 913 (c) 2816 5855 9913 (d) 2815 6855 9913
- 40.📅 The digits 23041966 are a date: day, month, year. Which chunking shows the date? (a) 2304/19/66 (b) 23/0419/66 (c) 23/04/1966 (d) 230/419/66
Answer key
- three chunks, not ten
- means something to you
- 2
- 781 597 043
- 653 567 0467
- splitting into groups
- numbers and letter lists
- 6716 8235 0021
- 5
- 03/01/2017
- 507 539 4466
- 2
- 8482 5959 8754
- 6
- 722 839 030
- 6
- 06/02/1952
- 19 and 47
- 02/07/1986
- 507 240 482
- 4
- 651 825 027
- 3
- 710 755 219
- 8851 1083 3812
- 697 480 113
- 22/02/1951
- 347 436 5142
- 843 440 393
- 02/03/2006
- 07/03/1961
- 27/09/2016
- 386 001 1249
- 330 390 7592
- 724 714 396
- 5790 8588 5514
- 25/07/1955
- 08/02/1997
- 2816 5855 9913
- 23/04/1966
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