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.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 1 9 4 7 (d) 194 and 7
- 2.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
- 3.📅 The digits 14041958 are a date: day, month, year. Which chunking shows the date? (a) 14/04/1958 (b) 1404/19/58 (c) 14/0419/58 (d) 140/419/58
- 4.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) nothing at all (d) only numbers
- 5.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) has no pattern (d) is very long
- 6.📅 The digits 20121988 are a date: day, month, year. Which chunking shows the date? (a) 201/219/88 (b) 20/1219/88 (c) 20/12/1988 (d) 2012/19/88
- 7.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 8.🔢 You want to remember the number 136467576994. Which chunked version keeps every digit in the same order? (a) 1364 6775 76994 (b) 1364 6576 994 (c) 1364 6757 6949 (d) 1364 6757 6994
- 9.🔢 You want to remember the number 5136014150. Which chunked version keeps every digit in the same order? (a) 511 360 14150 (b) 513 061 4150 (c) 513 601 4150 (d) 513 604 150
- 10.🔢 You want to remember the number 992536018. Which chunked version keeps every digit in the same order? (a) 992 536 6018 (b) 992 536 08 (c) 992 563 018 (d) 992 536 018
- 11.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 12.📅 The digits 28101964 are a date: day, month, year. Which chunking shows the date? (a) 281/019/64 (b) 28/1019/64 (c) 28/10/1964 (d) 2810/19/64
- 13.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 14.🔢 You want to remember the number 754434615. Which chunked version keeps every digit in the same order? (a) 754 434 6115 (b) 754 446 15 (c) 754 434 615 (d) 754 344 615
- 15.🔢 You want to remember the number 9336063638. Which chunked version keeps every digit in the same order? (a) 936 063 638 (b) 933 606 33638 (c) 933 606 3638 (d) 933 606 3368
- 16.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 17.🔢 You want to remember the number 125762074501. Which chunked version keeps every digit in the same order? (a) 1257 2607 4501 (b) 1257 6207 4501 (c) 1576 2074 501 (d) 1255 7620 74501
- 18.📅 The digits 24021961 are a date: day, month, year. Which chunking shows the date? (a) 24/0219/61 (b) 24/02/1961 (c) 2402/19/61 (d) 240/219/61
- 19.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 20.📅 The digits 05071985 are a date: day, month, year. Which chunking shows the date? (a) 05/0719/85 (b) 0507/19/85 (c) 050/719/85 (d) 05/07/1985
- 21.🔢 You want to remember the number 5087251199. Which chunked version keeps every digit in the same order? (a) 508 725 11999 (b) 507 251 199 (c) 508 725 1199 (d) 058 725 1199
- 22.🔢 You want to remember the number 5710865516. Which chunked version keeps every digit in the same order? (a) 571 085 516 (b) 571 086 65516 (c) 571 086 5516 (d) 571 068 5516
- 23.🔢 You want to remember the number 477856955731. Which chunked version keeps every digit in the same order? (a) 4778 5695 5713 (b) 4778 5695 5731 (c) 4778 5669 55731 (d) 4778 5695 731
- 24.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 25.📅 The digits 06091992 are a date: day, month, year. Which chunking shows the date? (a) 060/919/92 (b) 0609/19/92 (c) 06/0919/92 (d) 06/09/1992
- 26.🔢 You want to remember the number 296800270. Which chunked version keeps every digit in the same order? (a) 296 080 270 (b) 296 800 0270 (c) 296 800 270 (d) 296 800 27
- 27.📅 The digits 05061956 are a date: day, month, year. Which chunking shows the date? (a) 0506/19/56 (b) 050/619/56 (c) 05/0619/56 (d) 05/06/1956
- 28.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it is a smaller number (d) it has fewer digits
- 29.🔢 You want to remember the number 814319581. Which chunked version keeps every digit in the same order? (a) 814 195 81 (b) 881 431 9581 (c) 814 319 581 (d) 184 319 581
- 30.🔢 You want to remember the number 9933294064. Which chunked version keeps every digit in the same order? (a) 999 332 94064 (b) 993 394 064 (c) 993 329 4064 (d) 993 324 9064
- 31.🔢 You want to remember the number 265340559. Which chunked version keeps every digit in the same order? (a) 265 340 559 (b) 263 540 559 (c) 265 340 59 (d) 265 334 0559
- 32.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 33.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 34.🔢 You want to remember the number 5507091727. Which chunked version keeps every digit in the same order? (a) 550 709 727 (b) 555 070 91727 (c) 557 009 1727 (d) 550 709 1727
- 35.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 36.🔢 You want to remember the number 665234008. Which chunked version keeps every digit in the same order? (a) 665 324 008 (b) 665 234 008 (c) 652 340 08 (d) 666 523 4008
- 37.🔢 You want to remember the number 9139029831. Which chunked version keeps every digit in the same order? (a) 931 902 9831 (b) 939 029 831 (c) 991 390 29831 (d) 913 902 9831
- 38.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 39.📅 The digits 07011977 are a date: day, month, year. Which chunking shows the date? (a) 07/0119/77 (b) 070/119/77 (c) 0701/19/77 (d) 07/01/1977
- 40.📅 The digits 01022010 are a date: day, month, year. Which chunking shows the date? (a) 010/220/10 (b) 01/0220/10 (c) 0102/20/10 (d) 01/02/2010
Answer key
- 19 and 47
- splitting into groups
- 14/04/1958
- numbers and letter lists
- means something to you
- 20/12/1988
- 3
- 1364 6757 6994
- 513 601 4150
- 992 536 018
- 5
- 28/10/1964
- 2
- 754 434 615
- 933 606 3638
- 5
- 1257 6207 4501
- 24/02/1961
- 8
- 05/07/1985
- 508 725 1199
- 571 086 5516
- 4778 5695 5731
- 5
- 06/09/1992
- 296 800 270
- 05/06/1956
- three chunks, not ten
- 814 319 581
- 993 329 4064
- 265 340 559
- 3
- 7
- 550 709 1727
- 2
- 665 234 008
- 913 902 9831
- 5
- 07/01/1977
- 01/02/2010
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