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 23101962 are a date: day, month, year. Which chunking shows the date? (a) 231/019/62 (b) 23/1019/62 (c) 2310/19/62 (d) 23/10/1962
- 2.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
- 3.🔢 You want to remember the number 403229458. Which chunked version keeps every digit in the same order? (a) 402 294 58 (b) 440 322 9458 (c) 403 229 548 (d) 403 229 458
- 4.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 5.🔢 You want to remember the number 902083541548. Which chunked version keeps every digit in the same order? (a) 9020 8354 1548 (b) 9002 0835 41548 (c) 9020 3854 1548 (d) 9028 3541 548
- 6.📅 The digits 12031991 are a date: day, month, year. Which chunking shows the date? (a) 1203/19/91 (b) 120/319/91 (c) 12/0319/91 (d) 12/03/1991
- 7.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 8.📅 The digits 23071955 are a date: day, month, year. Which chunking shows the date? (a) 2307/19/55 (b) 23/07/1955 (c) 23/0719/55 (d) 230/719/55
- 9.📅 The digits 08031959 are a date: day, month, year. Which chunking shows the date? (a) 08/03/1959 (b) 0803/19/59 (c) 080/319/59 (d) 08/0319/59
- 10.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 11.📅 The digits 21081996 are a date: day, month, year. Which chunking shows the date? (a) 210/819/96 (b) 21/08/1996 (c) 2108/19/96 (d) 21/0819/96
- 12.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
- 13.📅 The digits 26111959 are a date: day, month, year. Which chunking shows the date? (a) 26/11/1959 (b) 261/119/59 (c) 26/1119/59 (d) 2611/19/59
- 14.📅 The digits 22031972 are a date: day, month, year. Which chunking shows the date? (a) 220/319/72 (b) 22/0319/72 (c) 22/03/1972 (d) 2203/19/72
- 15.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 16.📅 The digits 22072004 are a date: day, month, year. Which chunking shows the date? (a) 22/0720/04 (b) 2207/20/04 (c) 22/07/2004 (d) 220/720/04
- 17.🔢 You want to remember the number 422219287. Which chunked version keeps every digit in the same order? (a) 422 219 2877 (b) 242 219 287 (c) 422 192 87 (d) 422 219 287
- 18.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 19.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 20.📅 The digits 12031988 are a date: day, month, year. Which chunking shows the date? (a) 12/0319/88 (b) 120/319/88 (c) 1203/19/88 (d) 12/03/1988
- 21.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 22.🔢 You want to remember the number 690746025. Which chunked version keeps every digit in the same order? (a) 690 760 25 (b) 690 746 025 (c) 690 764 025 (d) 690 074 6025
- 23.📅 The digits 02101951 are a date: day, month, year. Which chunking shows the date? (a) 02/10/1951 (b) 021/019/51 (c) 02/1019/51 (d) 0210/19/51
- 24.📅 The digits 17031968 are a date: day, month, year. Which chunking shows the date? (a) 17/03/1968 (b) 17/0319/68 (c) 1703/19/68 (d) 170/319/68
- 25.🔢 You want to remember the number 4386430361. Which chunked version keeps every digit in the same order? (a) 438 430 361 (b) 438 643 3061 (c) 438 643 0361 (d) 433 864 30361
- 26.📅 The digits 19041952 are a date: day, month, year. Which chunking shows the date? (a) 190/419/52 (b) 19/0419/52 (c) 1904/19/52 (d) 19/04/1952
- 27.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 28.🔢 You want to remember the number 454524580. Which chunked version keeps every digit in the same order? (a) 455 245 80 (b) 454 524 5880 (c) 454 524 508 (d) 454 524 580
- 29.🔢 You want to remember the number 5185266264. Which chunked version keeps every digit in the same order? (a) 518 562 6264 (b) 518 526 6264 (c) 515 266 264 (d) 518 526 66264
- 30.🔢 You want to remember the number 182913757924. Which chunked version keeps every digit in the same order? (a) 1829 1375 7924 (b) 1829 1377 57924 (c) 1829 1377 5924 (d) 1291 3757 924
- 31.🔢 You want to remember the number 2771377902. Which chunked version keeps every digit in the same order? (a) 277 317 7902 (b) 771 377 902 (c) 277 137 79022 (d) 277 137 7902
- 32.📅 The digits 24041957 are a date: day, month, year. Which chunking shows the date? (a) 2404/19/57 (b) 24/0419/57 (c) 240/419/57 (d) 24/04/1957
- 33.🔢 You want to remember the number 6626572414. Which chunked version keeps every digit in the same order? (a) 626 572 414 (b) 662 657 24114 (c) 662 567 2414 (d) 662 657 2414
- 34.🔢 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
- 35.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is a smaller number (c) it has fewer digits (d) it is printed bigger
- 36.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 37.📅 The digits 08011996 are a date: day, month, year. Which chunking shows the date? (a) 0801/19/96 (b) 080/119/96 (c) 08/01/1996 (d) 08/0119/96
- 38.🔢 You want to remember the number 238387573. Which chunked version keeps every digit in the same order? (a) 238 387 537 (b) 238 387 5573 (c) 238 387 573 (d) 383 875 73
- 39.🔢 You want to remember the number 931399646. Which chunked version keeps every digit in the same order? (a) 931 399 646 (b) 931 399 664 (c) 931 399 6466 (d) 931 996 46
- 40.📅 The digits 25071996 are a date: day, month, year. Which chunking shows the date? (a) 2507/19/96 (b) 25/0719/96 (c) 250/719/96 (d) 25/07/1996
Answer key
- 23/10/1962
- means something to you
- 403 229 458
- 5
- 9020 8354 1548
- 12/03/1991
- 7
- 23/07/1955
- 08/03/1959
- 5
- 21/08/1996
- splitting into groups
- 26/11/1959
- 22/03/1972
- 2
- 22/07/2004
- 422 219 287
- 8
- 5
- 12/03/1988
- 3
- 690 746 025
- 02/10/1951
- 17/03/1968
- 438 643 0361
- 19/04/1952
- 4
- 454 524 580
- 518 526 6264
- 1829 1375 7924
- 277 137 7902
- 24/04/1957
- 662 657 2414
- 19 and 47
- three chunks, not ten
- 9
- 08/01/1996
- 238 387 573
- 931 399 646
- 25/07/1996
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