Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 99 · 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 6-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.📅 The digits 20041956 are a date: day, month, year. Which chunking shows the date? (a) 20/04/1956 (b) 200/419/56 (c) 2004/19/56 (d) 20/0419/56
3. 3.🔢 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
4. 4.📅 The digits 15041950 are a date: day, month, year. Which chunking shows the date? (a) 150/419/50 (b) 15/04/1950 (c) 1504/19/50 (d) 15/0419/50
5. 5.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.🔢 You want to remember the number 696609803. Which chunked version keeps every digit in the same order? (a) 966 098 03 (b) 966 609 803 (c) 696 600 9803 (d) 696 609 803
7. 7.🔢 You want to remember the number 9506785770. Which chunked version keeps every digit in the same order? (a) 950 678 5707 (b) 950 785 770 (c) 955 067 85770 (d) 950 678 5770
8. 8.🔢 You want to remember the number 275015000. Which chunked version keeps every digit in the same order? (a) 275 010 500 (b) 275 010 00 (c) 275 015 000 (d) 275 015 0000
9. 9.🔢 You want to remember the number 732240291. Which chunked version keeps every digit in the same order? (a) 732 240 2911 (b) 732 240 219 (c) 732 402 91 (d) 732 240 291
10. 10.📅 The digits 15021959 are a date: day, month, year. Which chunking shows the date? (a) 150/219/59 (b) 15/02/1959 (c) 1502/19/59 (d) 15/0219/59
11. 11.📅 The digits 01121974 are a date: day, month, year. Which chunking shows the date? (a) 01/12/1974 (b) 0112/19/74 (c) 011/219/74 (d) 01/1219/74
12. 12.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
13. 13.🔢 You want to remember the number 243105281. Which chunked version keeps every digit in the same order? (a) 241 305 281 (b) 243 105 5281 (c) 241 052 81 (d) 243 105 281
14. 14.🔢 You want to remember the number 868512763. Which chunked version keeps every digit in the same order? (a) 886 512 763 (b) 685 127 63 (c) 868 512 763 (d) 868 551 2763
15. 15.🔢 You want to remember the number 570539358. Which chunked version keeps every digit in the same order? (a) 507 539 358 (b) 570 539 358 (c) 570 553 9358 (d) 705 393 58
16. 16.🔢 You want to remember the number 5899975872. Which chunked version keeps every digit in the same order? (a) 589 997 5872 (b) 589 999 75872 (c) 589 997 587 (d) 859 997 5872
17. 17.🔢 You want to remember the number 2081010110. Which chunked version keeps every digit in the same order? (a) 208 110 110 (b) 208 101 00110 (c) 201 801 0110 (d) 208 101 0110
18. 18.🔢 A chunk is easiest to keep when it… (a) changes daily (b) is very long (c) has no pattern (d) means something to you
19. 19.🔢 Chunking works for… (a) nothing at all (b) only numbers (c) numbers and letter lists (d) only pictures
20. 20.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
21. 21.📅 The digits 06102002 are a date: day, month, year. Which chunking shows the date? (a) 06/10/2002 (b) 061/020/02 (c) 06/1020/02 (d) 0610/20/02
22. 22.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
23. 23.🔢 You want to remember the number 404320352. Which chunked version keeps every digit in the same order? (a) 404 303 52 (b) 404 320 3352 (c) 404 320 352 (d) 404 302 352
24. 24.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
25. 25.📅 The digits 20091991 are a date: day, month, year. Which chunking shows the date? (a) 2009/19/91 (b) 20/09/1991 (c) 200/919/91 (d) 20/0919/91
26. 26.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
27. 27.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
28. 28.🔢 What is chunking? (a) splitting into groups (b) reading very fast (c) writing it twice (d) saying it backwards
29. 29.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 19 and 47 (c) 194 and 7 (d) 1 and 947
30. 30.📅 The digits 01042005 are a date: day, month, year. Which chunking shows the date? (a) 010/420/05 (b) 0104/20/05 (c) 01/04/2005 (d) 01/0420/05
31. 31.🔢 You want to remember the number 1697790597. Which chunked version keeps every digit in the same order? (a) 169 779 05997 (b) 169 770 597 (c) 196 779 0597 (d) 169 779 0597
32. 32.🔢 You want to remember the number 9945370757. Which chunked version keeps every digit in the same order? (a) 994 537 075 (b) 994 530 7757 (c) 994 453 70757 (d) 994 537 0757
33. 33.🔢 You want to remember the number 508184860. Which chunked version keeps every digit in the same order? (a) 508 184 80 (b) 508 184 860 (c) 508 818 4860 (d) 058 184 860
34. 34.📅 The digits 10061956 are a date: day, month, year. Which chunking shows the date? (a) 10/0619/56 (b) 1006/19/56 (c) 100/619/56 (d) 10/06/1956
35. 35.🔢 You want to remember the number 9036851258. Which chunked version keeps every digit in the same order? (a) 903 685 1258 (b) 936 851 258 (c) 903 685 51258 (d) 930 685 1258
36. 36.🔢 You want to remember the number 3202560027. Which chunked version keeps every digit in the same order? (a) 230 256 0027 (b) 322 025 60027 (c) 320 256 0027 (d) 320 256 027
37. 37.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
38. 38.🔢 You want to remember the number 982603501. Which chunked version keeps every digit in the same order? (a) 826 035 01 (b) 982 603 501 (c) 982 605 301 (d) 982 603 5001
39. 39.📅 The digits 20051953 are a date: day, month, year. Which chunking shows the date? (a) 200/519/53 (b) 20/05/1953 (c) 20/0519/53 (d) 2005/19/53
40. 40.📅 The digits 20061954 are a date: day, month, year. Which chunking shows the date? (a) 200/619/54 (b) 20/06/1954 (c) 20/0619/54 (d) 2006/19/54

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