Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 96 · 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.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
3. 3.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 1 9 4 7 (c) 19 and 47 (d) 194 and 7
4. 4.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) it is printed bigger (d) three chunks, not ten
5. 5.📅 The digits 26091987 are a date: day, month, year. Which chunking shows the date? (a) 2609/19/87 (b) 26/0919/87 (c) 26/09/1987 (d) 260/919/87
6. 6.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) numbers and letter lists (d) only numbers
7. 7.📅 The digits 06051953 are a date: day, month, year. Which chunking shows the date? (a) 06/0519/53 (b) 060/519/53 (c) 06/05/1953 (d) 0605/19/53
8. 8.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) saying it backwards (d) writing it twice
9. 9.📅 The digits 03021988 are a date: day, month, year. Which chunking shows the date? (a) 03/0219/88 (b) 030/219/88 (c) 03/02/1988 (d) 0302/19/88
10. 10.🔢 You want to remember the number 122458206370. Which chunked version keeps every digit in the same order? (a) 1224 5826 370 (b) 1224 5820 6370 (c) 1224 8520 6370 (d) 1224 5820 66370
11. 11.🔢 You want to remember the number 2039203641. Which chunked version keeps every digit in the same order? (a) 023 920 3641 (b) 203 920 33641 (c) 203 920 3641 (d) 203 920 364
12. 12.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
13. 13.🔢 You want to remember the number 7860574630. Which chunked version keeps every digit in the same order? (a) 786 057 44630 (b) 786 075 4630 (c) 786 057 4630 (d) 760 574 630
14. 14.🔢 You want to remember the number 747684633. Which chunked version keeps every digit in the same order? (a) 747 684 633 (b) 774 768 4633 (c) 747 648 633 (d) 746 846 33
15. 15.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.📅 The digits 28112025 are a date: day, month, year. Which chunking shows the date? (a) 281/120/25 (b) 28/1120/25 (c) 2811/20/25 (d) 28/11/2025
17. 17.🔢 You want to remember the number 366023525. Which chunked version keeps every digit in the same order? (a) 366 602 3525 (b) 366 235 25 (c) 366 023 525 (d) 366 032 525
18. 18.🔢 You want to remember the number 282466202. Which chunked version keeps every digit in the same order? (a) 282 466 2202 (b) 282 462 02 (c) 282 466 202 (d) 282 466 022
19. 19.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
20. 20.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
21. 21.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
22. 22.📅 The digits 13101955 are a date: day, month, year. Which chunking shows the date? (a) 13/1019/55 (b) 1310/19/55 (c) 131/019/55 (d) 13/10/1955
23. 23.🔢 You want to remember the number 654070162016. Which chunked version keeps every digit in the same order? (a) 6540 7016 62016 (b) 6540 7016 201 (c) 6540 7016 2016 (d) 6504 7016 2016
24. 24.🔢 You want to remember the number 187010658. Which chunked version keeps every digit in the same order? (a) 187 106 58 (b) 187 010 658 (c) 187 100 658 (d) 187 701 0658
25. 25.📅 The digits 15071985 are a date: day, month, year. Which chunking shows the date? (a) 150/719/85 (b) 1507/19/85 (c) 15/0719/85 (d) 15/07/1985
26. 26.📅 The digits 14081981 are a date: day, month, year. Which chunking shows the date? (a) 14/08/1981 (b) 14/0819/81 (c) 140/819/81 (d) 1408/19/81
27. 27.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
28. 28.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
29. 29.🔢 You want to remember the number 352276499. Which chunked version keeps every digit in the same order? (a) 352 227 6499 (b) 352 764 99 (c) 352 276 499 (d) 352 267 499
30. 30.🔢 You want to remember the number 270548217683. Which chunked version keeps every digit in the same order? (a) 2704 5821 7683 (b) 2705 4821 7683 (c) 2705 4821 76883 (d) 2705 4821 768
31. 31.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
32. 32.🔢 You want to remember the number 658233335343. Which chunked version keeps every digit in the same order? (a) 6582 3333 5343 (b) 6582 3333 543 (c) 6582 3333 53433 (d) 6528 3333 5343
33. 33.🔢 You want to remember the number 485104268055. Which chunked version keeps every digit in the same order? (a) 8451 0426 8055 (b) 4851 0426 88055 (c) 4510 4268 055 (d) 4851 0426 8055
34. 34.🔢 You want to remember the number 169878980. Which chunked version keeps every digit in the same order? (a) 198 789 80 (b) 169 878 9880 (c) 169 878 908 (d) 169 878 980
35. 35.🔢 You want to remember the number 6236428229. Which chunked version keeps every digit in the same order? (a) 626 342 8229 (b) 236 428 229 (c) 623 642 82229 (d) 623 642 8229
36. 36.🔢 You want to remember the number 7911995649. Which chunked version keeps every digit in the same order? (a) 791 199 564 (b) 791 199 5649 (c) 971 199 5649 (d) 791 199 56499
37. 37.📅 The digits 14042018 are a date: day, month, year. Which chunking shows the date? (a) 140/420/18 (b) 14/04/2018 (c) 14/0420/18 (d) 1404/20/18
38. 38.📅 The digits 02062004 are a date: day, month, year. Which chunking shows the date? (a) 02/0620/04 (b) 0206/20/04 (c) 02/06/2004 (d) 020/620/04
39. 39.🔢 You want to remember the number 6020175582. Which chunked version keeps every digit in the same order? (a) 602 017 5582 (b) 062 017 5582 (c) 020 175 582 (d) 602 017 55882
40. 40.📅 The digits 19071954 are a date: day, month, year. Which chunking shows the date? (a) 190/719/54 (b) 19/07/1954 (c) 1907/19/54 (d) 19/0719/54

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