Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 456 · 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 15-digit number is split into chunks of 3 digits each. How many chunks is that?
2. 2.🔢 You want to remember the number 4974694815. Which chunked version keeps every digit in the same order? (a) 494 769 4815 (b) 474 694 815 (c) 497 446 94815 (d) 497 469 4815
3. 3.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
4. 4.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is a smaller number (c) it has fewer digits (d) it is printed bigger
5. 5.🔢 You want to remember the number 137860677154. Which chunked version keeps every digit in the same order? (a) 1337 8606 77154 (b) 1786 0677 154 (c) 1378 6067 1754 (d) 1378 6067 7154
6. 6.📅 The digits 07021963 are a date: day, month, year. Which chunking shows the date? (a) 07/0219/63 (b) 0702/19/63 (c) 07/02/1963 (d) 070/219/63
7. 7.🔢 You want to remember the number 317502780. Which chunked version keeps every digit in the same order? (a) 331 750 2780 (b) 371 502 780 (c) 317 502 78 (d) 317 502 780
8. 8.🔢 You want to remember the number 429064537. Which chunked version keeps every digit in the same order? (a) 420 645 37 (b) 429 064 537 (c) 429 064 5337 (d) 249 064 537
9. 9.🔢 You want to remember the number 387444810. Which chunked version keeps every digit in the same order? (a) 387 444 180 (b) 387 448 10 (c) 387 444 810 (d) 387 744 4810
10. 10.🔢 You want to remember the number 203188741. Which chunked version keeps every digit in the same order? (a) 031 887 41 (b) 203 318 8741 (c) 203 188 741 (d) 203 187 841
11. 11.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
12. 12.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
13. 13.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
14. 14.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
15. 15.📅 The digits 16011964 are a date: day, month, year. Which chunking shows the date? (a) 16/0119/64 (b) 1601/19/64 (c) 160/119/64 (d) 16/01/1964
16. 16.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 19 and 47 (c) 1 9 4 7 (d) 1 and 947
17. 17.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
18. 18.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
19. 19.🔢 You want to remember the number 108622711831. Which chunked version keeps every digit in the same order? (a) 1086 2271 183 (b) 1086 2721 1831 (c) 1086 2271 11831 (d) 1086 2271 1831
20. 20.📅 The digits 20041961 are a date: day, month, year. Which chunking shows the date? (a) 20/0419/61 (b) 20/04/1961 (c) 2004/19/61 (d) 200/419/61
21. 21.🔢 You want to remember the number 133979229287. Which chunked version keeps every digit in the same order? (a) 1339 7922 9287 (b) 1339 7922 987 (c) 1339 7922 2987 (d) 1339 9792 29287
22. 22.📅 The digits 16102010 are a date: day, month, year. Which chunking shows the date? (a) 16/1020/10 (b) 161/020/10 (c) 16/10/2010 (d) 1610/20/10
23. 23.🔢 You want to remember the number 134239582. Which chunked version keeps every digit in the same order? (a) 134 239 5822 (b) 134 239 582 (c) 342 395 82 (d) 134 239 852
24. 24.📅 The digits 08121950 are a date: day, month, year. Which chunking shows the date? (a) 081/219/50 (b) 0812/19/50 (c) 08/1219/50 (d) 08/12/1950
25. 25.📅 The digits 10051970 are a date: day, month, year. Which chunking shows the date? (a) 10/05/1970 (b) 10/0519/70 (c) 100/519/70 (d) 1005/19/70
26. 26.🔢 You want to remember the number 369019215. Which chunked version keeps every digit in the same order? (a) 369 019 215 (b) 369 001 9215 (c) 369 019 251 (d) 369 192 15
27. 27.🔢 You want to remember the number 286026126930. Which chunked version keeps every digit in the same order? (a) 2860 2162 6930 (b) 2860 2612 690 (c) 2886 0261 26930 (d) 2860 2612 6930
28. 28.🔢 You want to remember the number 460221661435. Which chunked version keeps every digit in the same order? (a) 6402 2166 1435 (b) 4602 2166 14435 (c) 4602 2166 1435 (d) 4602 2161 435
29. 29.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
30. 30.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
31. 31.📅 The digits 10111975 are a date: day, month, year. Which chunking shows the date? (a) 10/11/1975 (b) 10/1119/75 (c) 101/119/75 (d) 1011/19/75
32. 32.🔢 Chunking works for… (a) only pictures (b) only numbers (c) nothing at all (d) numbers and letter lists
33. 33.📅 The digits 03101989 are a date: day, month, year. Which chunking shows the date? (a) 03/10/1989 (b) 0310/19/89 (c) 031/019/89 (d) 03/1019/89
34. 34.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
35. 35.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
36. 36.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
37. 37.🔢 You want to remember the number 718209716. Which chunked version keeps every digit in the same order? (a) 718 209 16 (b) 712 809 716 (c) 711 820 9716 (d) 718 209 716
38. 38.📅 The digits 16011951 are a date: day, month, year. Which chunking shows the date? (a) 16/01/1951 (b) 16/0119/51 (c) 1601/19/51 (d) 160/119/51
39. 39.🔢 You want to remember the number 131691808310. Which chunked version keeps every digit in the same order? (a) 1316 9180 08310 (b) 1316 9180 830 (c) 1316 9180 3810 (d) 1316 9180 8310
40. 40.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?

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