Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 198 · 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.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it is a smaller number (d) it has fewer digits
2. 2.📅 The digits 08051985 are a date: day, month, year. Which chunking shows the date? (a) 08/0519/85 (b) 0805/19/85 (c) 080/519/85 (d) 08/05/1985
3. 3.🔢 You want to remember the number 652432537. Which chunked version keeps every digit in the same order? (a) 652 435 237 (b) 652 243 2537 (c) 652 432 537 (d) 652 432 53
4. 4.🔢 You want to remember the number 388071175. Which chunked version keeps every digit in the same order? (a) 388 807 1175 (b) 380 711 75 (c) 388 071 175 (d) 388 071 157
5. 5.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
6. 6.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
7. 7.🔢 You want to remember the number 470064434. Which chunked version keeps every digit in the same order? (a) 470 006 4434 (b) 470 064 34 (c) 470 064 434 (d) 407 064 434
8. 8.🔢 You want to remember the number 418040229. Which chunked version keeps every digit in the same order? (a) 418 804 0229 (b) 418 042 029 (c) 418 040 229 (d) 418 040 29
9. 9.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
10. 10.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 1 9 4 7 (d) 194 and 7
11. 11.🔢 You want to remember the number 511595072. Which chunked version keeps every digit in the same order? (a) 511 595 0722 (b) 515 950 72 (c) 511 595 072 (d) 515 195 072
12. 12.📅 The digits 16011982 are a date: day, month, year. Which chunking shows the date? (a) 160/119/82 (b) 1601/19/82 (c) 16/0119/82 (d) 16/01/1982
13. 13.📅 The digits 13021961 are a date: day, month, year. Which chunking shows the date? (a) 13/0219/61 (b) 1302/19/61 (c) 130/219/61 (d) 13/02/1961
14. 14.🔢 A chunk is easiest to keep when it… (a) means something to you (b) has no pattern (c) is very long (d) changes daily
15. 15.🔢 You want to remember the number 578194989. Which chunked version keeps every digit in the same order? (a) 578 194 9889 (b) 571 894 989 (c) 578 194 989 (d) 578 194 98
16. 16.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
17. 17.📅 The digits 08121977 are a date: day, month, year. Which chunking shows the date? (a) 08/12/1977 (b) 081/219/77 (c) 0812/19/77 (d) 08/1219/77
18. 18.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
19. 19.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
20. 20.📅 The digits 22112025 are a date: day, month, year. Which chunking shows the date? (a) 2211/20/25 (b) 221/120/25 (c) 22/11/2025 (d) 22/1120/25
21. 21.📅 The digits 12081975 are a date: day, month, year. Which chunking shows the date? (a) 12/08/1975 (b) 1208/19/75 (c) 12/0819/75 (d) 120/819/75
22. 22.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) reading very fast (d) splitting into groups
23. 23.🔢 You want to remember the number 635495056. Which chunked version keeps every digit in the same order? (a) 635 495 0556 (b) 635 495 056 (c) 634 950 56 (d) 635 945 056
24. 24.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) only pictures (d) nothing at all
25. 25.📅 The digits 05011950 are a date: day, month, year. Which chunking shows the date? (a) 0501/19/50 (b) 05/0119/50 (c) 050/119/50 (d) 05/01/1950
26. 26.🔢 You want to remember the number 221569873. Which chunked version keeps every digit in the same order? (a) 221 568 973 (b) 221 569 8873 (c) 225 698 73 (d) 221 569 873
27. 27.🔢 You want to remember the number 375285621274. Which chunked version keeps every digit in the same order? (a) 3752 8562 21274 (b) 3752 8562 1274 (c) 3752 8561 2274 (d) 3528 5621 274
28. 28.🔢 You want to remember the number 413580754081. Which chunked version keeps every digit in the same order? (a) 4135 8075 401 (b) 4135 8075 4081 (c) 4135 8057 4081 (d) 4135 8075 40881
29. 29.📅 The digits 04092006 are a date: day, month, year. Which chunking shows the date? (a) 04/09/2006 (b) 0409/20/06 (c) 040/920/06 (d) 04/0920/06
30. 30.🔢 You want to remember the number 7381172872. Which chunked version keeps every digit in the same order? (a) 773 811 72872 (b) 738 117 2872 (c) 738 117 287 (d) 738 117 8272
31. 31.🔢 You want to remember the number 7561112887. Which chunked version keeps every digit in the same order? (a) 756 112 1887 (b) 756 611 12887 (c) 756 111 887 (d) 756 111 2887
32. 32.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
33. 33.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
34. 34.📅 The digits 24021993 are a date: day, month, year. Which chunking shows the date? (a) 24/0219/93 (b) 2402/19/93 (c) 240/219/93 (d) 24/02/1993
35. 35.🔢 You want to remember the number 227248530. Which chunked version keeps every digit in the same order? (a) 227 248 530 (b) 227 284 530 (c) 227 248 30 (d) 227 244 8530
36. 36.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
37. 37.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
38. 38.📅 The digits 25021968 are a date: day, month, year. Which chunking shows the date? (a) 250/219/68 (b) 25/02/1968 (c) 25/0219/68 (d) 2502/19/68
39. 39.📅 The digits 28092020 are a date: day, month, year. Which chunking shows the date? (a) 28/0920/20 (b) 28/09/2020 (c) 280/920/20 (d) 2809/20/20
40. 40.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?

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