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 02101957 are a date: day, month, year. Which chunking shows the date? (a) 021/019/57 (b) 02/1019/57 (c) 02/10/1957 (d) 0210/19/57
- 2.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) means something to you (d) changes daily
- 3.🔢 You want to remember the number 718791338. Which chunked version keeps every digit in the same order? (a) 718 791 3388 (b) 718 791 38 (c) 718 719 338 (d) 718 791 338
- 4.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) reading very fast (d) saying it backwards
- 5.🔢 You want to remember the number 965776966727. Which chunked version keeps every digit in the same order? (a) 9677 6966 727 (b) 9675 7696 6727 (c) 9657 7696 6727 (d) 9657 7696 66727
- 6.🔢 You want to remember the number 5456606602. Which chunked version keeps every digit in the same order? (a) 545 606 602 (b) 545 660 66022 (c) 546 560 6602 (d) 545 660 6602
- 7.🔢 You want to remember the number 386842329964. Which chunked version keeps every digit in the same order? (a) 3886 8423 29964 (b) 3868 4232 9964 (c) 3868 4232 994 (d) 3868 4239 2964
- 8.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 9.📅 The digits 26021956 are a date: day, month, year. Which chunking shows the date? (a) 26/02/1956 (b) 26/0219/56 (c) 2602/19/56 (d) 260/219/56
- 10.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 11.📅 The digits 26112004 are a date: day, month, year. Which chunking shows the date? (a) 26/11/2004 (b) 261/120/04 (c) 26/1120/04 (d) 2611/20/04
- 12.🔢 You want to remember the number 944815208. Which chunked version keeps every digit in the same order? (a) 944 812 508 (b) 944 815 208 (c) 944 815 2208 (d) 948 152 08
- 13.📅 The digits 14112023 are a date: day, month, year. Which chunking shows the date? (a) 1411/20/23 (b) 141/120/23 (c) 14/1120/23 (d) 14/11/2023
- 14.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 15.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) it is printed bigger (d) three chunks, not ten
- 16.🔢 You want to remember the number 3313278189. Which chunked version keeps every digit in the same order? (a) 331 327 189 (b) 331 327 8189 (c) 333 132 78189 (d) 331 327 8198
- 17.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 18.📅 The digits 18021954 are a date: day, month, year. Which chunking shows the date? (a) 180/219/54 (b) 1802/19/54 (c) 18/02/1954 (d) 18/0219/54
- 19.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 9 4 7 (c) 194 and 7 (d) 1 and 947
- 20.📅 The digits 17062005 are a date: day, month, year. Which chunking shows the date? (a) 170/620/05 (b) 17/0620/05 (c) 17/06/2005 (d) 1706/20/05
- 21.📅 The digits 24042007 are a date: day, month, year. Which chunking shows the date? (a) 240/420/07 (b) 24/04/2007 (c) 24/0420/07 (d) 2404/20/07
- 22.📅 The digits 03071957 are a date: day, month, year. Which chunking shows the date? (a) 030/719/57 (b) 03/07/1957 (c) 0307/19/57 (d) 03/0719/57
- 23.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 24.📅 The digits 15021976 are a date: day, month, year. Which chunking shows the date? (a) 15/02/1976 (b) 150/219/76 (c) 1502/19/76 (d) 15/0219/76
- 25.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 26.🔢 You want to remember the number 324139748659. Which chunked version keeps every digit in the same order? (a) 3241 1397 48659 (b) 3241 3974 8659 (c) 3241 3974 6859 (d) 2413 9748 659
- 27.🔢 You want to remember the number 304704017375. Which chunked version keeps every digit in the same order? (a) 3047 0401 17375 (b) 3047 0401 7375 (c) 3040 4017 375 (d) 3047 4001 7375
- 28.🔢 You want to remember the number 4807853357. Which chunked version keeps every digit in the same order? (a) 487 853 357 (b) 480 758 3357 (c) 480 785 33577 (d) 480 785 3357
- 29.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 30.📅 The digits 20031999 are a date: day, month, year. Which chunking shows the date? (a) 20/0319/99 (b) 200/319/99 (c) 2003/19/99 (d) 20/03/1999
- 31.🔢 You want to remember the number 896573151. Which chunked version keeps every digit in the same order? (a) 896 657 3151 (b) 896 753 151 (c) 896 573 151 (d) 896 531 51
- 32.🔢 You want to remember the number 569685972065. Which chunked version keeps every digit in the same order? (a) 5698 6597 2065 (b) 5696 8597 2065 (c) 5696 8859 72065 (d) 6968 5972 065
- 33.📅 The digits 28101956 are a date: day, month, year. Which chunking shows the date? (a) 28/10/1956 (b) 281/019/56 (c) 2810/19/56 (d) 28/1019/56
- 34.📅 The digits 02041983 are a date: day, month, year. Which chunking shows the date? (a) 020/419/83 (b) 0204/19/83 (c) 02/0419/83 (d) 02/04/1983
- 35.📅 The digits 02071952 are a date: day, month, year. Which chunking shows the date? (a) 0207/19/52 (b) 02/0719/52 (c) 02/07/1952 (d) 020/719/52
- 36.🔢 You want to remember the number 6530296413. Which chunked version keeps every digit in the same order? (a) 635 029 6413 (b) 653 029 413 (c) 653 302 96413 (d) 653 029 6413
- 37.🔢 You want to remember the number 652755047232. Which chunked version keeps every digit in the same order? (a) 6527 5504 7232 (b) 6527 5540 7232 (c) 6575 5047 232 (d) 6552 7550 47232
- 38.🔢 You want to remember the number 3093151250. Which chunked version keeps every digit in the same order? (a) 309 315 12500 (b) 309 315 125 (c) 309 315 1250 (d) 309 135 1250
- 39.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 40.🔢 Chunking works for… (a) only pictures (b) only numbers (c) nothing at all (d) numbers and letter lists
Answer key
- 02/10/1957
- means something to you
- 718 791 338
- splitting into groups
- 9657 7696 6727
- 545 660 6602
- 3868 4232 9964
- 4
- 26/02/1956
- 5
- 26/11/2004
- 944 815 208
- 14/11/2023
- 4
- three chunks, not ten
- 331 327 8189
- 6
- 18/02/1954
- 19 and 47
- 17/06/2005
- 24/04/2007
- 03/07/1957
- 2
- 15/02/1976
- 9
- 3241 3974 8659
- 3047 0401 7375
- 480 785 3357
- 4
- 20/03/1999
- 896 573 151
- 5696 8597 2065
- 28/10/1956
- 02/04/1983
- 02/07/1952
- 653 029 6413
- 6527 5504 7232
- 309 315 1250
- 5
- numbers and letter lists
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