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.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) three chunks, not ten (d) it has fewer digits
- 2.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 3.🔢 You want to remember the number 591717059. Which chunked version keeps every digit in the same order? (a) 591 717 05 (b) 591 717 0559 (c) 591 717 509 (d) 591 717 059
- 4.🔢 You want to remember the number 812516505475. Which chunked version keeps every digit in the same order? (a) 8125 1650 55475 (b) 8125 1650 5475 (c) 8125 1605 5475 (d) 8125 1605 475
- 5.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) reading very fast (d) splitting into groups
- 6.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) is very long (d) has no pattern
- 7.📅 The digits 21031955 are a date: day, month, year. Which chunking shows the date? (a) 2103/19/55 (b) 210/319/55 (c) 21/0319/55 (d) 21/03/1955
- 8.🔢 You want to remember the number 380777026. Which chunked version keeps every digit in the same order? (a) 387 770 26 (b) 380 777 026 (c) 830 777 026 (d) 380 777 7026
- 9.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 10.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 1 and 947 (d) 194 and 7
- 11.🔢 You want to remember the number 2151772895. Which chunked version keeps every digit in the same order? (a) 215 177 2895 (b) 215 177 28955 (c) 251 177 2895 (d) 215 772 895
- 12.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 13.📅 The digits 12041988 are a date: day, month, year. Which chunking shows the date? (a) 12/0419/88 (b) 120/419/88 (c) 1204/19/88 (d) 12/04/1988
- 14.📅 The digits 12111973 are a date: day, month, year. Which chunking shows the date? (a) 121/119/73 (b) 1211/19/73 (c) 12/11/1973 (d) 12/1119/73
- 15.📅 The digits 19101998 are a date: day, month, year. Which chunking shows the date? (a) 1910/19/98 (b) 191/019/98 (c) 19/10/1998 (d) 19/1019/98
- 16.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only numbers (d) only pictures
- 17.🔢 You want to remember the number 394510273. Which chunked version keeps every digit in the same order? (a) 394 150 273 (b) 394 511 0273 (c) 945 102 73 (d) 394 510 273
- 18.🔢 You want to remember the number 788319575007. Which chunked version keeps every digit in the same order? (a) 8831 9575 007 (b) 7888 3195 75007 (c) 7883 1975 5007 (d) 7883 1957 5007
- 19.🔢 You want to remember the number 852002217525. Which chunked version keeps every digit in the same order? (a) 8520 0221 7525 (b) 8520 2217 525 (c) 8520 0221 77525 (d) 5820 0221 7525
- 20.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 21.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 22.📅 The digits 17081981 are a date: day, month, year. Which chunking shows the date? (a) 17/0819/81 (b) 170/819/81 (c) 17/08/1981 (d) 1708/19/81
- 23.📅 The digits 15121976 are a date: day, month, year. Which chunking shows the date? (a) 15/1219/76 (b) 151/219/76 (c) 1512/19/76 (d) 15/12/1976
- 24.🔢 You want to remember the number 775628758. Which chunked version keeps every digit in the same order? (a) 775 628 75 (b) 777 562 8758 (c) 757 628 758 (d) 775 628 758
- 25.🔢 You want to remember the number 813940056. Which chunked version keeps every digit in the same order? (a) 813 940 0556 (b) 813 940 056 (c) 813 490 056 (d) 813 900 56
- 26.📅 The digits 11091960 are a date: day, month, year. Which chunking shows the date? (a) 11/09/1960 (b) 11/0919/60 (c) 1109/19/60 (d) 110/919/60
- 27.🔢 You want to remember the number 207987289312. Which chunked version keeps every digit in the same order? (a) 2079 8728 93112 (b) 2079 8728 912 (c) 2079 8728 9312 (d) 2079 8729 8312
- 28.📅 The digits 04031957 are a date: day, month, year. Which chunking shows the date? (a) 04/0319/57 (b) 0403/19/57 (c) 040/319/57 (d) 04/03/1957
- 29.🔢 You want to remember the number 319130252. Which chunked version keeps every digit in the same order? (a) 319 130 252 (b) 139 130 252 (c) 319 302 52 (d) 311 913 0252
- 30.🔢 You want to remember the number 7182272432. Which chunked version keeps every digit in the same order? (a) 781 227 2432 (b) 718 227 2432 (c) 182 272 432 (d) 718 227 24322
- 31.📅 The digits 27101982 are a date: day, month, year. Which chunking shows the date? (a) 271/019/82 (b) 2710/19/82 (c) 27/10/1982 (d) 27/1019/82
- 32.🔢 You want to remember the number 4042534690. Which chunked version keeps every digit in the same order? (a) 404 425 34690 (b) 404 253 4690 (c) 404 254 3690 (d) 402 534 690
- 33.📅 The digits 19041954 are a date: day, month, year. Which chunking shows the date? (a) 19/04/1954 (b) 1904/19/54 (c) 19/0419/54 (d) 190/419/54
- 34.📅 The digits 01021968 are a date: day, month, year. Which chunking shows the date? (a) 0102/19/68 (b) 010/219/68 (c) 01/0219/68 (d) 01/02/1968
- 35.🔢 You want to remember the number 104275102. Which chunked version keeps every digit in the same order? (a) 104 275 1022 (b) 014 275 102 (c) 104 275 02 (d) 104 275 102
- 36.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 37.📅 The digits 13041951 are a date: day, month, year. Which chunking shows the date? (a) 13/0419/51 (b) 1304/19/51 (c) 13/04/1951 (d) 130/419/51
- 38.🔢 You want to remember the number 6271831420. Which chunked version keeps every digit in the same order? (a) 627 183 142 (b) 627 188 31420 (c) 627 813 1420 (d) 627 183 1420
- 39.📅 The digits 14042019 are a date: day, month, year. Which chunking shows the date? (a) 140/420/19 (b) 1404/20/19 (c) 14/0420/19 (d) 14/04/2019
- 40.🔢 You want to remember the number 280870977300. Which chunked version keeps every digit in the same order? (a) 2808 7097 7300 (b) 2808 7097 730 (c) 2800 8709 77300 (d) 2808 7097 7030
Answer key
- three chunks, not ten
- 3
- 591 717 059
- 8125 1650 5475
- splitting into groups
- means something to you
- 21/03/1955
- 380 777 026
- 5
- 19 and 47
- 215 177 2895
- 2
- 12/04/1988
- 12/11/1973
- 19/10/1998
- numbers and letter lists
- 394 510 273
- 7883 1957 5007
- 8520 0221 7525
- 4
- 3
- 17/08/1981
- 15/12/1976
- 775 628 758
- 813 940 056
- 11/09/1960
- 2079 8728 9312
- 04/03/1957
- 319 130 252
- 718 227 2432
- 27/10/1982
- 404 253 4690
- 19/04/1954
- 01/02/1968
- 104 275 102
- 5
- 13/04/1951
- 627 183 1420
- 14/04/2019
- 2808 7097 7300
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