Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 340 · 40 questions

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.

1. 1.🔢 You want to remember the number 9026942120. Which chunked version keeps every digit in the same order? (a) 902 694 2102 (b) 902 269 42120 (c) 902 694 2120 (d) 902 942 120
2. 2.🔢 You want to remember the number 2145553734. Which chunked version keeps every digit in the same order? (a) 214 555 3734 (b) 214 455 53734 (c) 214 555 734 (d) 215 455 3734
3. 3.🔢 You want to remember the number 632472988. Which chunked version keeps every digit in the same order? (a) 632 472 898 (b) 632 472 98 (c) 632 472 988 (d) 663 247 2988
4. 4.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
5. 5.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
6. 6.🔢 You want to remember the number 739847762. Which chunked version keeps every digit in the same order? (a) 739 477 62 (b) 379 847 762 (c) 739 847 762 (d) 733 984 7762
7. 7.🔢 You want to remember the number 867215432. Which chunked version keeps every digit in the same order? (a) 867 215 432 (b) 886 721 5432 (c) 862 715 432 (d) 867 215 42
8. 8.📅 The digits 24031979 are a date: day, month, year. Which chunking shows the date? (a) 240/319/79 (b) 24/0319/79 (c) 2403/19/79 (d) 24/03/1979
9. 9.🔢 You want to remember the number 252872134138. Which chunked version keeps every digit in the same order? (a) 2528 7213 4183 (b) 2528 7213 4138 (c) 2528 8721 34138 (d) 2528 7213 138
10. 10.🔢 You want to remember the number 346347872. Which chunked version keeps every digit in the same order? (a) 463 478 72 (b) 346 347 782 (c) 346 347 872 (d) 344 634 7872
11. 11.🔢 You want to remember the number 519625210. Which chunked version keeps every digit in the same order? (a) 196 252 10 (b) 551 962 5210 (c) 519 622 510 (d) 519 625 210
12. 12.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
13. 13.🔢 Chunking works for… (a) only numbers (b) nothing at all (c) only pictures (d) numbers and letter lists
14. 14.📅 The digits 06081981 are a date: day, month, year. Which chunking shows the date? (a) 060/819/81 (b) 06/08/1981 (c) 06/0819/81 (d) 0608/19/81
15. 15.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
16. 16.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it has fewer digits (d) it is a smaller number
17. 17.📅 The digits 14072023 are a date: day, month, year. Which chunking shows the date? (a) 1407/20/23 (b) 14/07/2023 (c) 140/720/23 (d) 14/0720/23
18. 18.🔢 You want to remember the number 228071422. Which chunked version keeps every digit in the same order? (a) 228 071 42 (b) 228 701 422 (c) 228 077 1422 (d) 228 071 422
19. 19.🔢 You want to remember the number 609648577. Which chunked version keeps every digit in the same order? (a) 609 685 77 (b) 609 648 577 (c) 690 648 577 (d) 609 964 8577
20. 20.🔢 You want to remember the number 720582364175. Which chunked version keeps every digit in the same order? (a) 7205 8236 41175 (b) 7205 8236 4175 (c) 2705 8236 4175 (d) 7205 8236 475
21. 21.📅 The digits 22041961 are a date: day, month, year. Which chunking shows the date? (a) 220/419/61 (b) 22/0419/61 (c) 22/04/1961 (d) 2204/19/61
22. 22.📅 The digits 20021951 are a date: day, month, year. Which chunking shows the date? (a) 20/02/1951 (b) 200/219/51 (c) 20/0219/51 (d) 2002/19/51
23. 23.📅 The digits 11022009 are a date: day, month, year. Which chunking shows the date? (a) 11/0220/09 (b) 110/220/09 (c) 11/02/2009 (d) 1102/20/09
24. 24.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
25. 25.🔢 You want to remember the number 660616910317. Which chunked version keeps every digit in the same order? (a) 6660 6169 10317 (b) 6606 1691 0317 (c) 6606 1691 0371 (d) 6061 6910 317
26. 26.🔢 You want to remember the number 745127772. Which chunked version keeps every digit in the same order? (a) 745 172 772 (b) 745 127 72 (c) 745 127 772 (d) 745 127 7772
27. 27.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
28. 28.📅 The digits 11092014 are a date: day, month, year. Which chunking shows the date? (a) 11/0920/14 (b) 11/09/2014 (c) 110/920/14 (d) 1109/20/14
29. 29.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
30. 30.📅 The digits 16021983 are a date: day, month, year. Which chunking shows the date? (a) 160/219/83 (b) 16/0219/83 (c) 16/02/1983 (d) 1602/19/83
31. 31.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
32. 32.🔢 You want to remember the number 665339372. Which chunked version keeps every digit in the same order? (a) 665 333 972 (b) 663 393 72 (c) 665 339 9372 (d) 665 339 372
33. 33.🔢 What is chunking? (a) saying it backwards (b) splitting into groups (c) writing it twice (d) reading very fast
34. 34.🔢 You want to remember the number 886428767. Which chunked version keeps every digit in the same order? (a) 886 482 767 (b) 886 442 8767 (c) 886 487 67 (d) 886 428 767
35. 35.🔢 You want to remember the number 699900176. Which chunked version keeps every digit in the same order? (a) 699 901 076 (b) 699 900 176 (c) 669 990 0176 (d) 699 001 76
36. 36.🔢 You want to remember the number 661260275776. Which chunked version keeps every digit in the same order? (a) 6612 6027 5776 (b) 6126 0275 776 (c) 6661 2602 75776 (d) 6612 6025 7776
37. 37.📅 The digits 21021962 are a date: day, month, year. Which chunking shows the date? (a) 21/02/1962 (b) 210/219/62 (c) 21/0219/62 (d) 2102/19/62
38. 38.🔢 You want to remember the number 2091469680. Which chunked version keeps every digit in the same order? (a) 209 146 9680 (b) 209 416 9680 (c) 209 146 980 (d) 209 114 69680
39. 39.📅 The digits 10061963 are a date: day, month, year. Which chunking shows the date? (a) 10/06/1963 (b) 100/619/63 (c) 1006/19/63 (d) 10/0619/63
40. 40.📅 The digits 02022021 are a date: day, month, year. Which chunking shows the date? (a) 02/0220/21 (b) 02/02/2021 (c) 020/220/21 (d) 0202/20/21

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