Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 999 · 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.🔢 What is chunking? (a) splitting into groups (b) writing it twice (c) reading very fast (d) saying it backwards
2. 2.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 1 9 4 7 (d) 19 and 47
3. 3.📅 The digits 20072005 are a date: day, month, year. Which chunking shows the date? (a) 200/720/05 (b) 2007/20/05 (c) 20/0720/05 (d) 20/07/2005
4. 4.🔢 You want to remember the number 604627581. Which chunked version keeps every digit in the same order? (a) 604 627 581 (b) 604 627 5811 (c) 646 275 81 (d) 604 625 781
5. 5.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
7. 7.🔢 You want to remember the number 365414238. Which chunked version keeps every digit in the same order? (a) 365 414 238 (b) 365 414 28 (c) 365 412 438 (d) 365 414 2388
8. 8.🔢 A chunk is easiest to keep when it… (a) changes daily (b) has no pattern (c) is very long (d) means something to you
9. 9.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) nothing at all (d) only pictures
10. 10.🔢 You want to remember the number 143919123. Which chunked version keeps every digit in the same order? (a) 413 919 123 (b) 143 919 123 (c) 139 191 23 (d) 114 391 9123
11. 11.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
12. 12.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
13. 13.📅 The digits 27092009 are a date: day, month, year. Which chunking shows the date? (a) 27/0920/09 (b) 27/09/2009 (c) 270/920/09 (d) 2709/20/09
14. 14.🔢 You want to remember the number 9853930791. Which chunked version keeps every digit in the same order? (a) 983 593 0791 (b) 953 930 791 (c) 985 393 0791 (d) 998 539 30791
15. 15.🔢 You want to remember the number 479180123122. Which chunked version keeps every digit in the same order? (a) 4791 8012 31222 (b) 4791 8012 3122 (c) 4791 8013 122 (d) 4798 1012 3122
16. 16.📅 The digits 18121968 are a date: day, month, year. Which chunking shows the date? (a) 181/219/68 (b) 18/1219/68 (c) 18/12/1968 (d) 1812/19/68
17. 17.🔢 You want to remember the number 803890661720. Which chunked version keeps every digit in the same order? (a) 8038 9061 6720 (b) 8038 9066 1720 (c) 8038 9066 172 (d) 8803 8906 61720
18. 18.🔢 You want to remember the number 661047891. Which chunked version keeps every digit in the same order? (a) 661 047 891 (b) 661 048 91 (c) 661 048 791 (d) 661 044 7891
19. 19.🔢 You want to remember the number 140603080. Which chunked version keeps every digit in the same order? (a) 140 600 80 (b) 140 060 3080 (c) 140 603 080 (d) 146 003 080
20. 20.📅 The digits 10111993 are a date: day, month, year. Which chunking shows the date? (a) 10/1119/93 (b) 101/119/93 (c) 1011/19/93 (d) 10/11/1993
21. 21.📅 The digits 28071978 are a date: day, month, year. Which chunking shows the date? (a) 2807/19/78 (b) 28/07/1978 (c) 280/719/78 (d) 28/0719/78
22. 22.📅 The digits 18051980 are a date: day, month, year. Which chunking shows the date? (a) 1805/19/80 (b) 18/0519/80 (c) 18/05/1980 (d) 180/519/80
23. 23.🔢 You want to remember the number 381549323116. Which chunked version keeps every digit in the same order? (a) 3815 4933 2116 (b) 3815 4932 316 (c) 3815 4932 3116 (d) 3881 5493 23116
24. 24.📅 The digits 24062002 are a date: day, month, year. Which chunking shows the date? (a) 24/06/2002 (b) 2406/20/02 (c) 240/620/02 (d) 24/0620/02
25. 25.🔢 You want to remember the number 821153659. Which chunked version keeps every digit in the same order? (a) 821 155 3659 (b) 821 153 695 (c) 821 153 659 (d) 821 153 69
26. 26.📅 The digits 21111960 are a date: day, month, year. Which chunking shows the date? (a) 211/119/60 (b) 2111/19/60 (c) 21/1119/60 (d) 21/11/1960
27. 27.📅 The digits 26071950 are a date: day, month, year. Which chunking shows the date? (a) 2607/19/50 (b) 26/07/1950 (c) 26/0719/50 (d) 260/719/50
28. 28.🔢 You want to remember the number 223647256. Which chunked version keeps every digit in the same order? (a) 223 647 2256 (b) 223 647 265 (c) 223 647 256 (d) 226 472 56
29. 29.🔢 You want to remember the number 9513965300. Which chunked version keeps every digit in the same order? (a) 951 396 5300 (b) 951 369 5300 (c) 951 396 53000 (d) 913 965 300
30. 30.📅 The digits 25101957 are a date: day, month, year. Which chunking shows the date? (a) 2510/19/57 (b) 251/019/57 (c) 25/10/1957 (d) 25/1019/57
31. 31.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) three chunks, not ten (c) it has fewer digits (d) it is a smaller number
32. 32.📅 The digits 17101971 are a date: day, month, year. Which chunking shows the date? (a) 1710/19/71 (b) 17/1019/71 (c) 17/10/1971 (d) 171/019/71
33. 33.🔢 You want to remember the number 271219589979. Which chunked version keeps every digit in the same order? (a) 2712 1958 89979 (b) 2711 2958 9979 (c) 2712 1958 9979 (d) 2712 1589 979
34. 34.📅 The digits 03121999 are a date: day, month, year. Which chunking shows the date? (a) 0312/19/99 (b) 03/12/1999 (c) 03/1219/99 (d) 031/219/99
35. 35.📅 The digits 06011975 are a date: day, month, year. Which chunking shows the date? (a) 06/0119/75 (b) 0601/19/75 (c) 060/119/75 (d) 06/01/1975
36. 36.🔢 You want to remember the number 3222516613. Which chunked version keeps every digit in the same order? (a) 232 251 6613 (b) 332 225 16613 (c) 322 216 613 (d) 322 251 6613
37. 37.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
38. 38.📅 The digits 02041987 are a date: day, month, year. Which chunking shows the date? (a) 0204/19/87 (b) 02/0419/87 (c) 020/419/87 (d) 02/04/1987
39. 39.📅 The digits 07081996 are a date: day, month, year. Which chunking shows the date? (a) 07/08/1996 (b) 0708/19/96 (c) 070/819/96 (d) 07/0819/96
40. 40.🔢 You want to remember the number 4238832724. Which chunked version keeps every digit in the same order? (a) 423 832 724 (b) 423 883 2724 (c) 423 882 3724 (d) 422 388 32724

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