Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 151 · 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.🔢 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 19012012 are a date: day, month, year. Which chunking shows the date? (a) 1901/20/12 (b) 19/01/2012 (c) 19/0120/12 (d) 190/120/12
4. 4.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
5. 5.🔢 You want to remember the number 932189124857. Which chunked version keeps every digit in the same order? (a) 3921 8912 4857 (b) 9321 8891 24857 (c) 9321 8912 4857 (d) 9321 8912 457
6. 6.📅 The digits 12041969 are a date: day, month, year. Which chunking shows the date? (a) 12/0419/69 (b) 120/419/69 (c) 1204/19/69 (d) 12/04/1969
7. 7.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) writing it twice (d) splitting into groups
8. 8.📅 The digits 02051956 are a date: day, month, year. Which chunking shows the date? (a) 020/519/56 (b) 0205/19/56 (c) 02/0519/56 (d) 02/05/1956
9. 9.🔢 You want to remember the number 3851803050. Which chunked version keeps every digit in the same order? (a) 385 180 33050 (b) 851 803 050 (c) 385 180 3050 (d) 385 180 3500
10. 10.🔢 You want to remember the number 692400776625. Which chunked version keeps every digit in the same order? (a) 6924 0077 6625 (b) 6294 0077 6625 (c) 9240 0776 625 (d) 6924 0077 66225
11. 11.🔢 You want to remember the number 1018369101. Which chunked version keeps every digit in the same order? (a) 101 836 901 (b) 101 836 9101 (c) 110 836 9101 (d) 101 836 91101
12. 12.📅 The digits 09102019 are a date: day, month, year. Which chunking shows the date? (a) 091/020/19 (b) 0910/20/19 (c) 09/10/2019 (d) 09/1020/19
13. 13.🔢 A chunk is easiest to keep when it… (a) means something to you (b) is very long (c) changes daily (d) has no pattern
14. 14.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
15. 15.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
16. 16.📅 The digits 13102011 are a date: day, month, year. Which chunking shows the date? (a) 1310/20/11 (b) 13/1020/11 (c) 131/020/11 (d) 13/10/2011
17. 17.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it has fewer digits (d) it is a smaller number
18. 18.🔢 You want to remember the number 548900759408. Which chunked version keeps every digit in the same order? (a) 5489 0075 9408 (b) 5489 0075 9048 (c) 5890 0759 408 (d) 5489 0077 59408
19. 19.🔢 You want to remember the number 260499561. Which chunked version keeps every digit in the same order? (a) 260 499 651 (b) 260 499 561 (c) 266 049 9561 (d) 260 495 61
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 456888955. Which chunked version keeps every digit in the same order? (a) 458 688 955 (b) 456 688 8955 (c) 456 888 955 (d) 456 889 55
22. 22.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
23. 23.🔢 You want to remember the number 912314857. Which chunked version keeps every digit in the same order? (a) 192 314 857 (b) 912 314 857 (c) 912 314 4857 (d) 912 314 57
24. 24.🔢 You want to remember the number 4794913501. Which chunked version keeps every digit in the same order? (a) 479 491 3501 (b) 479 491 350 (c) 479 491 5301 (d) 479 449 13501
25. 25.🔢 You want to remember the number 9093634141. Which chunked version keeps every digit in the same order? (a) 990 363 4141 (b) 909 363 4141 (c) 909 336 34141 (d) 909 334 141
26. 26.📅 The digits 05111996 are a date: day, month, year. Which chunking shows the date? (a) 05/1119/96 (b) 05/11/1996 (c) 051/119/96 (d) 0511/19/96
27. 27.🔢 You want to remember the number 755190425. Which chunked version keeps every digit in the same order? (a) 755 190 4225 (b) 755 904 25 (c) 755 190 425 (d) 575 190 425
28. 28.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
29. 29.🔢 You want to remember the number 202146670. Which chunked version keeps every digit in the same order? (a) 201 246 670 (b) 202 146 670 (c) 220 214 6670 (d) 021 466 70
30. 30.📅 The digits 19121972 are a date: day, month, year. Which chunking shows the date? (a) 19/12/1972 (b) 191/219/72 (c) 1912/19/72 (d) 19/1219/72
31. 31.🔢 You want to remember the number 1512169717. Which chunked version keeps every digit in the same order? (a) 151 216 97717 (b) 151 216 9717 (c) 151 216 917 (d) 151 216 9177
32. 32.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
33. 33.🔢 You want to remember the number 560587250152. Which chunked version keeps every digit in the same order? (a) 5605 8275 0152 (b) 5605 8725 0152 (c) 5605 7250 152 (d) 5605 8725 01152
34. 34.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
35. 35.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
36. 36.🔢 You want to remember the number 137732021881. Which chunked version keeps every digit in the same order? (a) 1377 3202 18881 (b) 1377 3202 1881 (c) 1373 2021 881 (d) 1737 3202 1881
37. 37.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
38. 38.🔢 You want to remember the number 330048811989. Which chunked version keeps every digit in the same order? (a) 3300 4881 198 (b) 3300 4888 11989 (c) 3300 4881 1989 (d) 3300 4818 1989
39. 39.📅 The digits 20052012 are a date: day, month, year. Which chunking shows the date? (a) 20/0520/12 (b) 200/520/12 (c) 20/05/2012 (d) 2005/20/12
40. 40.🔢 You want to remember the number 539280316. Which chunked version keeps every digit in the same order? (a) 539 280 361 (b) 592 803 16 (c) 539 280 0316 (d) 539 280 316

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