Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 124 · 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 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
2. 2.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) saying it backwards (d) writing it twice
3. 3.📅 The digits 20022006 are a date: day, month, year. Which chunking shows the date? (a) 200/220/06 (b) 20/0220/06 (c) 20/02/2006 (d) 2002/20/06
4. 4.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) only pictures (d) nothing at all
5. 5.📅 The digits 11112003 are a date: day, month, year. Which chunking shows the date? (a) 11/1120/03 (b) 111/120/03 (c) 1111/20/03 (d) 11/11/2003
6. 6.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 1 and 947 (d) 19 and 47
7. 7.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
8. 8.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) three chunks, not ten (c) it has fewer digits (d) it is printed bigger
9. 9.🔢 You want to remember the number 9670966618. Which chunked version keeps every digit in the same order? (a) 967 096 6618 (b) 967 096 618 (c) 967 099 66618 (d) 976 096 6618
10. 10.🔢 You want to remember the number 6304472979. Which chunked version keeps every digit in the same order? (a) 630 447 2979 (b) 630 447 22979 (c) 630 442 979 (d) 630 447 2799
11. 11.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
12. 12.📅 The digits 28022022 are a date: day, month, year. Which chunking shows the date? (a) 2802/20/22 (b) 28/02/2022 (c) 28/0220/22 (d) 280/220/22
13. 13.🔢 You want to remember the number 112784596466. Which chunked version keeps every digit in the same order? (a) 1127 8495 6466 (b) 1127 8459 96466 (c) 1127 8459 6466 (d) 1127 8459 466
14. 14.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
15. 15.🔢 You want to remember the number 427351003. Which chunked version keeps every digit in the same order? (a) 473 510 03 (b) 427 351 0033 (c) 247 351 003 (d) 427 351 003
16. 16.📅 The digits 13011956 are a date: day, month, year. Which chunking shows the date? (a) 1301/19/56 (b) 13/0119/56 (c) 13/01/1956 (d) 130/119/56
17. 17.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
18. 18.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
19. 19.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
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 212552549. Which chunked version keeps every digit in the same order? (a) 221 552 549 (b) 212 552 5499 (c) 212 552 549 (d) 212 552 59
22. 22.🔢 You want to remember the number 4458605907. Which chunked version keeps every digit in the same order? (a) 445 860 597 (b) 445 860 5970 (c) 445 860 5907 (d) 445 860 59077
23. 23.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) is very long (c) changes daily (d) means something to you
24. 24.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
25. 25.🔢 You want to remember the number 394421142. Which chunked version keeps every digit in the same order? (a) 394 421 412 (b) 399 442 1142 (c) 394 421 14 (d) 394 421 142
26. 26.🔢 You want to remember the number 565510634. Which chunked version keeps every digit in the same order? (a) 565 106 34 (b) 565 510 634 (c) 565 510 364 (d) 565 551 0634
27. 27.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
28. 28.🔢 You want to remember the number 287035610564. Which chunked version keeps every digit in the same order? (a) 2870 3566 10564 (b) 2870 3561 0564 (c) 2870 3516 0564 (d) 8703 5610 564
29. 29.📅 The digits 15031970 are a date: day, month, year. Which chunking shows the date? (a) 1503/19/70 (b) 15/0319/70 (c) 150/319/70 (d) 15/03/1970
30. 30.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
31. 31.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
32. 32.📅 The digits 17032021 are a date: day, month, year. Which chunking shows the date? (a) 1703/20/21 (b) 17/03/2021 (c) 170/320/21 (d) 17/0320/21
33. 33.📅 The digits 23022002 are a date: day, month, year. Which chunking shows the date? (a) 2302/20/02 (b) 230/220/02 (c) 23/02/2002 (d) 23/0220/02
34. 34.🔢 You want to remember the number 728418146291. Which chunked version keeps every digit in the same order? (a) 7284 1146 291 (b) 7284 1881 46291 (c) 7284 1816 4291 (d) 7284 1814 6291
35. 35.🔢 You want to remember the number 292954628. Which chunked version keeps every digit in the same order? (a) 292 954 62 (b) 299 295 4628 (c) 292 954 628 (d) 292 954 682
36. 36.📅 The digits 23111997 are a date: day, month, year. Which chunking shows the date? (a) 2311/19/97 (b) 231/119/97 (c) 23/1119/97 (d) 23/11/1997
37. 37.📅 The digits 11031966 are a date: day, month, year. Which chunking shows the date? (a) 11/03/1966 (b) 110/319/66 (c) 1103/19/66 (d) 11/0319/66
38. 38.🔢 You want to remember the number 5079024057. Which chunked version keeps every digit in the same order? (a) 579 024 057 (b) 507 902 44057 (c) 507 902 4057 (d) 507 904 2057
39. 39.🔢 You want to remember the number 151565321145. Which chunked version keeps every digit in the same order? (a) 1515 5321 145 (b) 1515 6553 21145 (c) 1515 6532 1154 (d) 1515 6532 1145
40. 40.🔢 You want to remember the number 1264564988. Which chunked version keeps every digit in the same order? (a) 126 456 4988 (b) 126 645 64988 (c) 126 454 988 (d) 124 656 4988

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