Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 804 · 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 4-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.📅 The digits 08061990 are a date: day, month, year. Which chunking shows the date? (a) 0806/19/90 (b) 08/0619/90 (c) 080/619/90 (d) 08/06/1990
3. 3.🔢 You want to remember the number 947498680348. Which chunked version keeps every digit in the same order? (a) 9474 9868 0348 (b) 9474 9866 80348 (c) 9479 4868 0348 (d) 9474 9880 348
4. 4.📅 The digits 03061963 are a date: day, month, year. Which chunking shows the date? (a) 03/0619/63 (b) 030/619/63 (c) 03/06/1963 (d) 0306/19/63
5. 5.📅 The digits 14052011 are a date: day, month, year. Which chunking shows the date? (a) 140/520/11 (b) 1405/20/11 (c) 14/05/2011 (d) 14/0520/11
6. 6.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
7. 7.📅 The digits 25122003 are a date: day, month, year. Which chunking shows the date? (a) 251/220/03 (b) 2512/20/03 (c) 25/12/2003 (d) 25/1220/03
8. 8.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) saying it backwards (d) splitting into groups
9. 9.🔢 You want to remember the number 4138520296. Which chunked version keeps every digit in the same order? (a) 413 852 0296 (b) 413 852 0269 (c) 413 885 20296 (d) 413 852 026
10. 10.🔢 You want to remember the number 2481047339. Which chunked version keeps every digit in the same order? (a) 224 810 47339 (b) 248 104 7339 (c) 248 104 3739 (d) 248 147 339
11. 11.🔢 You want to remember the number 373618773796. Which chunked version keeps every digit in the same order? (a) 7361 8773 796 (b) 3736 1877 3796 (c) 3736 1873 7796 (d) 3736 6187 73796
12. 12.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only numbers (d) only pictures
13. 13.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
14. 14.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
15. 15.📅 The digits 10121964 are a date: day, month, year. Which chunking shows the date? (a) 101/219/64 (b) 1012/19/64 (c) 10/1219/64 (d) 10/12/1964
16. 16.📅 The digits 07021950 are a date: day, month, year. Which chunking shows the date? (a) 0702/19/50 (b) 07/0219/50 (c) 07/02/1950 (d) 070/219/50
17. 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) three chunks, not ten (d) it is a smaller number
18. 18.🔢 You want to remember the number 127750009850. Which chunked version keeps every digit in the same order? (a) 1277 0500 9850 (b) 1277 5000 9850 (c) 1277 5000 985 (d) 1277 7500 09850
19. 19.🔢 You want to remember the number 953647229221. Which chunked version keeps every digit in the same order? (a) 9536 7229 221 (b) 9953 6472 29221 (c) 9536 4722 9221 (d) 9563 4722 9221
20. 20.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
21. 21.🔢 You want to remember the number 391288017. Which chunked version keeps every digit in the same order? (a) 391 128 8017 (b) 391 288 017 (c) 391 280 17 (d) 319 288 017
22. 22.📅 The digits 14082025 are a date: day, month, year. Which chunking shows the date? (a) 14/08/2025 (b) 1408/20/25 (c) 140/820/25 (d) 14/0820/25
23. 23.🔢 You want to remember the number 472879430. Which chunked version keeps every digit in the same order? (a) 472 897 430 (b) 472 879 430 (c) 477 287 9430 (d) 472 874 30
24. 24.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 194 and 7 (d) 19 and 47
25. 25.📅 The digits 13091980 are a date: day, month, year. Which chunking shows the date? (a) 13/0919/80 (b) 130/919/80 (c) 13/09/1980 (d) 1309/19/80
26. 26.🔢 You want to remember the number 109175030. Which chunked version keeps every digit in the same order? (a) 109 175 030 (b) 109 917 5030 (c) 109 157 030 (d) 109 175 03
27. 27.📅 The digits 16101973 are a date: day, month, year. Which chunking shows the date? (a) 161/019/73 (b) 1610/19/73 (c) 16/1019/73 (d) 16/10/1973
28. 28.🔢 You want to remember the number 310555839898. Which chunked version keeps every digit in the same order? (a) 3105 5583 99898 (b) 3105 5583 988 (c) 3105 5583 9898 (d) 3105 5538 9898
29. 29.🔢 You want to remember the number 653313043. Which chunked version keeps every digit in the same order? (a) 653 130 43 (b) 653 133 043 (c) 653 313 043 (d) 653 331 3043
30. 30.📅 The digits 25021997 are a date: day, month, year. Which chunking shows the date? (a) 25/02/1997 (b) 250/219/97 (c) 25/0219/97 (d) 2502/19/97
31. 31.📅 The digits 12121972 are a date: day, month, year. Which chunking shows the date? (a) 12/1219/72 (b) 1212/19/72 (c) 12/12/1972 (d) 121/219/72
32. 32.📅 The digits 14081969 are a date: day, month, year. Which chunking shows the date? (a) 14/08/1969 (b) 1408/19/69 (c) 14/0819/69 (d) 140/819/69
33. 33.📅 The digits 28082013 are a date: day, month, year. Which chunking shows the date? (a) 2808/20/13 (b) 28/0820/13 (c) 280/820/13 (d) 28/08/2013
34. 34.🔢 You want to remember the number 231621380892. Which chunked version keeps every digit in the same order? (a) 2311 6213 80892 (b) 2316 2138 0892 (c) 2316 1238 0892 (d) 2312 1380 892
35. 35.🔢 You want to remember the number 3144272170. Which chunked version keeps every digit in the same order? (a) 344 272 170 (b) 314 427 2170 (c) 314 472 2170 (d) 311 442 72170
36. 36.📅 The digits 11111958 are a date: day, month, year. Which chunking shows the date? (a) 111/119/58 (b) 11/1119/58 (c) 1111/19/58 (d) 11/11/1958
37. 37.📅 The digits 03011992 are a date: day, month, year. Which chunking shows the date? (a) 030/119/92 (b) 0301/19/92 (c) 03/01/1992 (d) 03/0119/92
38. 38.🔢 You want to remember the number 280935970. Which chunked version keeps every digit in the same order? (a) 280 395 970 (b) 280 935 970 (c) 809 359 70 (d) 288 093 5970
39. 39.🔢 You want to remember the number 378406775. Which chunked version keeps every digit in the same order? (a) 374 806 775 (b) 378 406 775 (c) 378 840 6775 (d) 784 067 75
40. 40.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?

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