Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 166 · 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.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
2. 2.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) three chunks, not ten (d) it has fewer digits
4. 4.📅 The digits 17081964 are a date: day, month, year. Which chunking shows the date? (a) 170/819/64 (b) 17/0819/64 (c) 1708/19/64 (d) 17/08/1964
5. 5.🔢 You want to remember the number 4830835142. Which chunked version keeps every digit in the same order? (a) 843 083 5142 (b) 483 083 55142 (c) 483 083 5142 (d) 483 035 142
6. 6.🔢 You want to remember the number 521061158231. Which chunked version keeps every digit in the same order? (a) 5210 6115 823 (b) 5210 6115 8231 (c) 5211 0611 58231 (d) 5210 6118 5231
7. 7.🔢 You want to remember the number 826381650. Which chunked version keeps every digit in the same order? (a) 826 816 50 (b) 826 831 650 (c) 826 381 650 (d) 826 388 1650
8. 8.🔢 You want to remember the number 166679739. Which chunked version keeps every digit in the same order? (a) 166 667 9739 (b) 166 677 939 (c) 166 679 739 (d) 166 679 79
9. 9.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
10. 10.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
11. 11.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) writing it twice (d) splitting into groups
12. 12.📅 The digits 05052003 are a date: day, month, year. Which chunking shows the date? (a) 0505/20/03 (b) 05/0520/03 (c) 050/520/03 (d) 05/05/2003
13. 13.📅 The digits 12071954 are a date: day, month, year. Which chunking shows the date? (a) 12/0719/54 (b) 1207/19/54 (c) 12/07/1954 (d) 120/719/54
14. 14.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
15. 15.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
16. 16.🔢 You want to remember the number 872358001. Which chunked version keeps every digit in the same order? (a) 872 385 001 (b) 872 335 8001 (c) 872 358 001 (d) 723 580 01
17. 17.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
18. 18.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
19. 19.🔢 You want to remember the number 2511072326. Which chunked version keeps every digit in the same order? (a) 251 102 326 (b) 251 107 23266 (c) 251 107 2326 (d) 251 107 3226
20. 20.🔢 You want to remember the number 313524038. Which chunked version keeps every digit in the same order? (a) 313 524 0338 (b) 313 524 038 (c) 313 540 38 (d) 313 520 438
21. 21.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
22. 22.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
23. 23.📅 The digits 07092016 are a date: day, month, year. Which chunking shows the date? (a) 0709/20/16 (b) 07/0920/16 (c) 070/920/16 (d) 07/09/2016
24. 24.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 19 and 47 (d) 1 9 4 7
25. 25.🔢 You want to remember the number 876526005. Which chunked version keeps every digit in the same order? (a) 876 526 00 (b) 876 526 005 (c) 876 522 6005 (d) 875 626 005
26. 26.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
27. 27.📅 The digits 26042017 are a date: day, month, year. Which chunking shows the date? (a) 26/04/2017 (b) 2604/20/17 (c) 260/420/17 (d) 26/0420/17
28. 28.🔢 You want to remember the number 161529641. Which chunked version keeps every digit in the same order? (a) 611 529 641 (b) 161 152 9641 (c) 161 526 41 (d) 161 529 641
29. 29.🔢 You want to remember the number 740252599. Which chunked version keeps every digit in the same order? (a) 740 522 599 (b) 402 525 99 (c) 740 252 2599 (d) 740 252 599
30. 30.🔢 You want to remember the number 6393500978. Which chunked version keeps every digit in the same order? (a) 663 935 00978 (b) 693 500 978 (c) 639 350 0978 (d) 369 350 0978
31. 31.📅 The digits 09061962 are a date: day, month, year. Which chunking shows the date? (a) 090/619/62 (b) 09/0619/62 (c) 09/06/1962 (d) 0906/19/62
32. 32.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) only pictures (d) numbers and letter lists
33. 33.📅 The digits 01072007 are a date: day, month, year. Which chunking shows the date? (a) 01/07/2007 (b) 0107/20/07 (c) 01/0720/07 (d) 010/720/07
34. 34.🔢 You want to remember the number 9434599064. Which chunked version keeps every digit in the same order? (a) 943 459 9064 (b) 943 549 9064 (c) 943 459 99064 (d) 934 599 064
35. 35.🔢 You want to remember the number 546202316. Which chunked version keeps every digit in the same order? (a) 546 200 2316 (b) 546 202 36 (c) 546 022 316 (d) 546 202 316
36. 36.🔢 You want to remember the number 213177147. Which chunked version keeps every digit in the same order? (a) 213 117 7147 (b) 213 177 147 (c) 213 171 47 (d) 213 171 747
37. 37.📅 The digits 13071973 are a date: day, month, year. Which chunking shows the date? (a) 130/719/73 (b) 13/07/1973 (c) 1307/19/73 (d) 13/0719/73
38. 38.📅 The digits 21041985 are a date: day, month, year. Which chunking shows the date? (a) 21/04/1985 (b) 2104/19/85 (c) 21/0419/85 (d) 210/419/85
39. 39.🔢 You want to remember the number 6030997861. Which chunked version keeps every digit in the same order? (a) 603 099 97861 (b) 603 099 7861 (c) 630 997 861 (d) 600 399 7861
40. 40.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?

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