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.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 2.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 3.🔢 You want to remember the number 222661534. Which chunked version keeps every digit in the same order? (a) 222 661 534 (b) 222 661 1534 (c) 222 661 54 (d) 222 665 134
- 4.📅 The digits 20032010 are a date: day, month, year. Which chunking shows the date? (a) 200/320/10 (b) 2003/20/10 (c) 20/0320/10 (d) 20/03/2010
- 5.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) saying it backwards (d) splitting into groups
- 6.🔢 You want to remember the number 662340724078. Which chunked version keeps every digit in the same order? (a) 6623 4072 4078 (b) 6623 4072 408 (c) 6623 4072 4087 (d) 6662 3407 24078
- 7.🔢 You want to remember the number 5274880498. Which chunked version keeps every digit in the same order? (a) 527 488 0498 (b) 527 848 0498 (c) 527 748 80498 (d) 527 480 498
- 8.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 9.📅 The digits 02072014 are a date: day, month, year. Which chunking shows the date? (a) 0207/20/14 (b) 020/720/14 (c) 02/07/2014 (d) 02/0720/14
- 10.🔢 You want to remember the number 5346235425. Which chunked version keeps every digit in the same order? (a) 534 623 5425 (b) 534 623 525 (c) 534 623 5245 (d) 534 462 35425
- 11.🔢 Chunking works for… (a) nothing at all (b) only pictures (c) numbers and letter lists (d) only numbers
- 12.🔢 You want to remember the number 7517590457. Which chunked version keeps every digit in the same order? (a) 751 750 457 (b) 751 759 0457 (c) 775 175 90457 (d) 751 750 9457
- 13.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) changes daily (d) has no pattern
- 14.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 19 and 47 (c) 1 9 4 7 (d) 1 and 947
- 15.📅 The digits 16112001 are a date: day, month, year. Which chunking shows the date? (a) 16/11/2001 (b) 161/120/01 (c) 1611/20/01 (d) 16/1120/01
- 16.🔢 You want to remember the number 6927305549. Which chunked version keeps every digit in the same order? (a) 692 730 5459 (b) 692 730 5549 (c) 669 273 05549 (d) 692 730 549
- 17.🔢 You want to remember the number 788152040. Which chunked version keeps every digit in the same order? (a) 788 152 004 (b) 788 115 2040 (c) 788 152 040 (d) 781 520 40
- 18.📅 The digits 10071978 are a date: day, month, year. Which chunking shows the date? (a) 100/719/78 (b) 10/07/1978 (c) 10/0719/78 (d) 1007/19/78
- 19.📅 The digits 14031965 are a date: day, month, year. Which chunking shows the date? (a) 14/0319/65 (b) 14/03/1965 (c) 1403/19/65 (d) 140/319/65
- 20.📅 The digits 23012023 are a date: day, month, year. Which chunking shows the date? (a) 23/01/2023 (b) 230/120/23 (c) 2301/20/23 (d) 23/0120/23
- 21.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 22.🔢 You want to remember the number 1496287856. Which chunked version keeps every digit in the same order? (a) 496 287 856 (b) 149 628 7856 (c) 149 268 7856 (d) 144 962 87856
- 23.🔢 You want to remember the number 8825137001. Which chunked version keeps every digit in the same order? (a) 882 137 001 (b) 882 513 7001 (c) 882 513 37001 (d) 882 513 0701
- 24.📅 The digits 08071991 are a date: day, month, year. Which chunking shows the date? (a) 080/719/91 (b) 08/0719/91 (c) 08/07/1991 (d) 0807/19/91
- 25.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 26.🔢 You want to remember the number 194410956. Which chunked version keeps every digit in the same order? (a) 914 410 956 (b) 194 410 956 (c) 194 410 9566 (d) 144 109 56
- 27.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 28.🔢 You want to remember the number 354001664. Which chunked version keeps every digit in the same order? (a) 354 006 164 (b) 354 001 664 (c) 354 016 64 (d) 354 000 1664
- 29.🔢 You want to remember the number 751834115. Which chunked version keeps every digit in the same order? (a) 751 384 115 (b) 751 834 15 (c) 751 834 1155 (d) 751 834 115
- 30.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 31.📅 The digits 20032002 are a date: day, month, year. Which chunking shows the date? (a) 2003/20/02 (b) 200/320/02 (c) 20/0320/02 (d) 20/03/2002
- 32.🔢 You want to remember the number 3324397329. Which chunked version keeps every digit in the same order? (a) 332 439 329 (b) 332 439 7329 (c) 332 439 7239 (d) 332 439 73229
- 33.📅 The digits 06011999 are a date: day, month, year. Which chunking shows the date? (a) 0601/19/99 (b) 06/01/1999 (c) 06/0119/99 (d) 060/119/99
- 34.📅 The digits 13042022 are a date: day, month, year. Which chunking shows the date? (a) 1304/20/22 (b) 13/0420/22 (c) 130/420/22 (d) 13/04/2022
- 35.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 36.📅 The digits 07011971 are a date: day, month, year. Which chunking shows the date? (a) 0701/19/71 (b) 07/0119/71 (c) 070/119/71 (d) 07/01/1971
- 37.🔢 You want to remember the number 9749127915. Which chunked version keeps every digit in the same order? (a) 974 912 7915 (b) 974 912 795 (c) 974 912 27915 (d) 974 912 7951
- 38.🔢 You want to remember the number 275108098654. Which chunked version keeps every digit in the same order? (a) 2751 0809 8654 (b) 2750 1809 8654 (c) 7510 8098 654 (d) 2751 0080 98654
- 39.🔢 You want to remember the number 4355697085. Which chunked version keeps every digit in the same order? (a) 435 569 77085 (b) 345 569 7085 (c) 435 569 085 (d) 435 569 7085
- 40.🔢 You want to remember the number 298436617075. Which chunked version keeps every digit in the same order? (a) 2984 3667 1075 (b) 2984 3661 7075 (c) 2984 3666 17075 (d) 9843 6617 075
Answer key
- 6
- 4
- 222 661 534
- 20/03/2010
- splitting into groups
- 6623 4072 4078
- 527 488 0498
- 5
- 02/07/2014
- 534 623 5425
- numbers and letter lists
- 751 759 0457
- means something to you
- 19 and 47
- 16/11/2001
- 692 730 5549
- 788 152 040
- 10/07/1978
- 14/03/1965
- 23/01/2023
- 5
- 149 628 7856
- 882 513 7001
- 08/07/1991
- 7
- 194 410 956
- 5
- 354 001 664
- 751 834 115
- 5
- 20/03/2002
- 332 439 7329
- 06/01/1999
- 13/04/2022
- 2
- 07/01/1971
- 974 912 7915
- 2751 0809 8654
- 435 569 7085
- 2984 3661 7075
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