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.🔢 You want to remember the number 468146077. Which chunked version keeps every digit in the same order? (a) 481 460 77 (b) 468 144 6077 (c) 648 146 077 (d) 468 146 077
- 2.📅 The digits 22032009 are a date: day, month, year. Which chunking shows the date? (a) 22/0320/09 (b) 2203/20/09 (c) 22/03/2009 (d) 220/320/09
- 3.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 4.🔢 You want to remember the number 458889671787. Which chunked version keeps every digit in the same order? (a) 4588 8896 71787 (b) 4588 8967 178 (c) 4588 8967 1787 (d) 4588 8976 1787
- 5.📅 The digits 16051968 are a date: day, month, year. Which chunking shows the date? (a) 16/05/1968 (b) 1605/19/68 (c) 160/519/68 (d) 16/0519/68
- 6.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
- 7.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 8.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 9.🔢 You want to remember the number 9787734570. Which chunked version keeps every digit in the same order? (a) 978 773 470 (b) 978 774 3570 (c) 978 773 4570 (d) 978 773 34570
- 10.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 11.📅 The digits 20031954 are a date: day, month, year. Which chunking shows the date? (a) 200/319/54 (b) 20/03/1954 (c) 2003/19/54 (d) 20/0319/54
- 12.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 13.🔢 You want to remember the number 397110238158. Which chunked version keeps every digit in the same order? (a) 3971 1023 81588 (b) 3971 1028 3158 (c) 3971 1023 8158 (d) 3971 1023 858
- 14.🔢 You want to remember the number 783416310. Which chunked version keeps every digit in the same order? (a) 738 416 310 (b) 783 416 310 (c) 788 341 6310 (d) 834 163 10
- 15.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
- 16.🔢 You want to remember the number 386626018600. Which chunked version keeps every digit in the same order? (a) 3866 2601 86600 (b) 8366 2601 8600 (c) 3866 2601 8600 (d) 3866 2601 860
- 17.🔢 What is chunking? (a) writing it twice (b) reading very fast (c) saying it backwards (d) splitting into groups
- 18.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 19.📅 The digits 09051972 are a date: day, month, year. Which chunking shows the date? (a) 090/519/72 (b) 09/0519/72 (c) 09/05/1972 (d) 0905/19/72
- 20.📅 The digits 22101966 are a date: day, month, year. Which chunking shows the date? (a) 22/10/1966 (b) 22/1019/66 (c) 2210/19/66 (d) 221/019/66
- 21.📅 The digits 13021998 are a date: day, month, year. Which chunking shows the date? (a) 13/0219/98 (b) 1302/19/98 (c) 130/219/98 (d) 13/02/1998
- 22.🔢 You want to remember the number 137659401239. Which chunked version keeps every digit in the same order? (a) 1765 9401 239 (b) 1376 5940 1239 (c) 1376 5940 1329 (d) 1376 5594 01239
- 23.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is a smaller number (c) it is printed bigger (d) it has fewer digits
- 24.🔢 You want to remember the number 122229123925. Which chunked version keeps every digit in the same order? (a) 1222 9123 925 (b) 1222 2912 3925 (c) 1122 2291 23925 (d) 1222 2912 3952
- 25.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 26.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 27.📅 The digits 27082012 are a date: day, month, year. Which chunking shows the date? (a) 27/0820/12 (b) 27/08/2012 (c) 2708/20/12 (d) 270/820/12
- 28.🔢 You want to remember the number 680214508935. Which chunked version keeps every digit in the same order? (a) 6082 1450 8935 (b) 6802 1450 8935 (c) 6021 4508 935 (d) 6802 1445 08935
- 29.📅 The digits 07121969 are a date: day, month, year. Which chunking shows the date? (a) 07/1219/69 (b) 07/12/1969 (c) 0712/19/69 (d) 071/219/69
- 30.🔢 You want to remember the number 101717367. Which chunked version keeps every digit in the same order? (a) 101 773 67 (b) 100 171 7367 (c) 101 717 367 (d) 101 713 767
- 31.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 32.📅 The digits 07111954 are a date: day, month, year. Which chunking shows the date? (a) 07/1119/54 (b) 071/119/54 (c) 0711/19/54 (d) 07/11/1954
- 33.📅 The digits 15021962 are a date: day, month, year. Which chunking shows the date? (a) 150/219/62 (b) 15/0219/62 (c) 15/02/1962 (d) 1502/19/62
- 34.🔢 You want to remember the number 389941412. Which chunked version keeps every digit in the same order? (a) 398 941 412 (b) 389 941 42 (c) 389 941 412 (d) 389 941 1412
- 35.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 36.🔢 You want to remember the number 542370625. Which chunked version keeps every digit in the same order? (a) 524 370 625 (b) 542 370 625 (c) 542 370 6625 (d) 543 706 25
- 37.🔢 You want to remember the number 791261210. Which chunked version keeps every digit in the same order? (a) 791 612 10 (b) 791 226 1210 (c) 791 261 210 (d) 791 261 201
- 38.🔢 You want to remember the number 954585430848. Which chunked version keeps every digit in the same order? (a) 9545 8543 088 (b) 9545 8543 0848 (c) 9545 5854 30848 (d) 9545 8543 0488
- 39.📅 The digits 03021966 are a date: day, month, year. Which chunking shows the date? (a) 0302/19/66 (b) 03/0219/66 (c) 030/219/66 (d) 03/02/1966
- 40.🔢 You want to remember the number 311232034400. Which chunked version keeps every digit in the same order? (a) 3311 2320 34400 (b) 3112 3203 4400 (c) 3112 3203 400 (d) 3113 2203 4400
Answer key
- 468 146 077
- 22/03/2009
- 2
- 4588 8967 1787
- 16/05/1968
- 19 and 47
- 5
- 2
- 978 773 4570
- 4
- 20/03/1954
- 9
- 3971 1023 8158
- 783 416 310
- means something to you
- 3866 2601 8600
- splitting into groups
- 8
- 09/05/1972
- 22/10/1966
- 13/02/1998
- 1376 5940 1239
- three chunks, not ten
- 1222 2912 3925
- 7
- 8
- 27/08/2012
- 6802 1450 8935
- 07/12/1969
- 101 717 367
- 3
- 07/11/1954
- 15/02/1962
- 389 941 412
- 5
- 542 370 625
- 791 261 210
- 9545 8543 0848
- 03/02/1966
- 3112 3203 4400
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