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 916181224. Which chunked version keeps every digit in the same order? (a) 916 181 224 (b) 916 181 22 (c) 916 181 2224 (d) 916 181 242
- 2.📅 The digits 25011961 are a date: day, month, year. Which chunking shows the date? (a) 250/119/61 (b) 25/0119/61 (c) 25/01/1961 (d) 2501/19/61
- 3.🔢 You want to remember the number 320700827802. Which chunked version keeps every digit in the same order? (a) 3207 0082 78002 (b) 3207 0082 802 (c) 3027 0082 7802 (d) 3207 0082 7802
- 4.🔢 You want to remember the number 586126869. Which chunked version keeps every digit in the same order? (a) 586 126 69 (b) 856 126 869 (c) 586 126 869 (d) 558 612 6869
- 5.🔢 You want to remember the number 779520065. Which chunked version keeps every digit in the same order? (a) 779 520 065 (b) 779 520 056 (c) 779 520 05 (d) 779 520 0065
- 6.📅 The digits 01011993 are a date: day, month, year. Which chunking shows the date? (a) 010/119/93 (b) 0101/19/93 (c) 01/01/1993 (d) 01/0119/93
- 7.🔢 You want to remember the number 859864588. Which chunked version keeps every digit in the same order? (a) 859 864 588 (b) 895 864 588 (c) 859 864 5888 (d) 859 845 88
- 8.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) splitting into groups (d) writing it twice
- 9.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 19 and 47 (d) 194 and 7
- 10.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 11.🔢 You want to remember the number 1021480615. Which chunked version keeps every digit in the same order? (a) 102 148 0615 (b) 102 148 615 (c) 102 144 80615 (d) 120 148 0615
- 12.🔢 You want to remember the number 6849497413. Which chunked version keeps every digit in the same order? (a) 684 949 7413 (b) 688 494 97413 (c) 684 949 743 (d) 689 449 7413
- 13.🔢 You want to remember the number 185701402. Which chunked version keeps every digit in the same order? (a) 185 701 042 (b) 185 714 02 (c) 185 701 4002 (d) 185 701 402
- 14.🔢 You want to remember the number 548021288789. Which chunked version keeps every digit in the same order? (a) 5480 2218 8789 (b) 5480 2128 87889 (c) 5480 1288 789 (d) 5480 2128 8789
- 15.🔢 You want to remember the number 4340505149. Which chunked version keeps every digit in the same order? (a) 434 055 149 (b) 433 405 05149 (c) 434 050 5149 (d) 434 055 0149
- 16.🔢 You want to remember the number 363409016179. Which chunked version keeps every digit in the same order? (a) 3634 0901 6179 (b) 3634 0901 6719 (c) 3340 9016 179 (d) 3634 0901 61179
- 17.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 18.🔢 You want to remember the number 285359706296. Which chunked version keeps every digit in the same order? (a) 2853 5970 6296 (b) 8535 9706 296 (c) 2853 5597 06296 (d) 2835 5970 6296
- 19.📅 The digits 25011977 are a date: day, month, year. Which chunking shows the date? (a) 25/01/1977 (b) 2501/19/77 (c) 250/119/77 (d) 25/0119/77
- 20.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 21.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 22.📅 The digits 10062022 are a date: day, month, year. Which chunking shows the date? (a) 100/620/22 (b) 10/0620/22 (c) 1006/20/22 (d) 10/06/2022
- 23.📅 The digits 11081998 are a date: day, month, year. Which chunking shows the date? (a) 11/08/1998 (b) 110/819/98 (c) 1108/19/98 (d) 11/0819/98
- 24.📅 The digits 03102020 are a date: day, month, year. Which chunking shows the date? (a) 03/10/2020 (b) 03/1020/20 (c) 0310/20/20 (d) 031/020/20
- 25.🔢 You want to remember the number 563858126495. Which chunked version keeps every digit in the same order? (a) 5638 5182 6495 (b) 5638 5812 695 (c) 5638 5812 6495 (d) 5633 8581 26495
- 26.🔢 You want to remember the number 8905557981. Which chunked version keeps every digit in the same order? (a) 895 557 981 (b) 890 555 7981 (c) 890 555 7918 (d) 890 555 77981
- 27.🔢 You want to remember the number 1046892767. Which chunked version keeps every digit in the same order? (a) 104 689 2767 (b) 104 689 267 (c) 104 689 2677 (d) 104 688 92767
- 28.📅 The digits 20102022 are a date: day, month, year. Which chunking shows the date? (a) 20/10/2022 (b) 20/1020/22 (c) 201/020/22 (d) 2010/20/22
- 29.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
- 30.📅 The digits 12021966 are a date: day, month, year. Which chunking shows the date? (a) 1202/19/66 (b) 120/219/66 (c) 12/0219/66 (d) 12/02/1966
- 31.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 32.📅 The digits 25051988 are a date: day, month, year. Which chunking shows the date? (a) 250/519/88 (b) 25/05/1988 (c) 2505/19/88 (d) 25/0519/88
- 33.🔢 You want to remember the number 7261369974. Which chunked version keeps every digit in the same order? (a) 726 136 9974 (b) 722 613 69974 (c) 726 136 974 (d) 762 136 9974
- 34.🔢 You want to remember the number 230421667. Which chunked version keeps every digit in the same order? (a) 204 216 67 (b) 230 412 667 (c) 230 042 1667 (d) 230 421 667
- 35.📅 The digits 02072021 are a date: day, month, year. Which chunking shows the date? (a) 0207/20/21 (b) 020/720/21 (c) 02/07/2021 (d) 02/0720/21
- 36.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 37.📅 The digits 04101992 are a date: day, month, year. Which chunking shows the date? (a) 04/10/1992 (b) 04/1019/92 (c) 0410/19/92 (d) 041/019/92
- 38.🔢 You want to remember the number 7297479022. Which chunked version keeps every digit in the same order? (a) 729 774 79022 (b) 729 479 022 (c) 792 747 9022 (d) 729 747 9022
- 39.🔢 You want to remember the number 226678768037. Which chunked version keeps every digit in the same order? (a) 2266 7876 8037 (b) 2667 8768 037 (c) 2266 7876 80037 (d) 2266 7867 8037
- 40.🔢 You want to remember the number 715568625522. Which chunked version keeps every digit in the same order? (a) 7155 6862 5522 (b) 7155 6862 55222 (c) 7156 5862 5522 (d) 7156 8625 522
Answer key
- 916 181 224
- 25/01/1961
- 3207 0082 7802
- 586 126 869
- 779 520 065
- 01/01/1993
- 859 864 588
- splitting into groups
- 19 and 47
- 6
- 102 148 0615
- 684 949 7413
- 185 701 402
- 5480 2128 8789
- 434 050 5149
- 3634 0901 6179
- 2
- 2853 5970 6296
- 25/01/1977
- 5
- 2
- 10/06/2022
- 11/08/1998
- 03/10/2020
- 5638 5812 6495
- 890 555 7981
- 104 689 2767
- 20/10/2022
- three chunks, not ten
- 12/02/1966
- 5
- 25/05/1988
- 726 136 9974
- 230 421 667
- 02/07/2021
- 3
- 04/10/1992
- 729 747 9022
- 2266 7876 8037
- 7155 6862 5522
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