Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 725 · 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.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 and 947 (c) 1 9 4 7 (d) 19 and 47
2. 2.🔢 A chunk is easiest to keep when it… (a) is very long (b) has no pattern (c) means something to you (d) changes daily
3. 3.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) three chunks, not ten (c) it is printed bigger (d) it is a smaller number
4. 4.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 You want to remember the number 806116521137. Which chunked version keeps every digit in the same order? (a) 8061 1521 137 (b) 8061 1652 1137 (c) 8061 1562 1137 (d) 8061 1652 21137
6. 6.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
7. 7.🔢 What is chunking? (a) saying it backwards (b) reading very fast (c) splitting into groups (d) writing it twice
8. 8.🔢 Chunking works for… (a) numbers and letter lists (b) only numbers (c) only pictures (d) nothing at all
9. 9.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
10. 10.🔢 You want to remember the number 6293712523. Which chunked version keeps every digit in the same order? (a) 629 317 2523 (b) 629 371 252 (c) 629 371 25223 (d) 629 371 2523
11. 11.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
12. 12.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
13. 13.🔢 You want to remember the number 247419385513. Which chunked version keeps every digit in the same order? (a) 2471 4938 5513 (b) 2477 4193 85513 (c) 2474 1985 513 (d) 2474 1938 5513
14. 14.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
15. 15.📅 The digits 07031990 are a date: day, month, year. Which chunking shows the date? (a) 07/0319/90 (b) 0703/19/90 (c) 07/03/1990 (d) 070/319/90
16. 16.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
17. 17.📅 The digits 14112025 are a date: day, month, year. Which chunking shows the date? (a) 1411/20/25 (b) 141/120/25 (c) 14/11/2025 (d) 14/1120/25
18. 18.📅 The digits 27121983 are a date: day, month, year. Which chunking shows the date? (a) 271/219/83 (b) 27/1219/83 (c) 27/12/1983 (d) 2712/19/83
19. 19.🔢 You want to remember the number 7572875478. Which chunked version keeps every digit in the same order? (a) 757 287 54788 (b) 752 787 5478 (c) 757 285 478 (d) 757 287 5478
20. 20.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
21. 21.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
22. 22.🔢 You want to remember the number 299206641441. Which chunked version keeps every digit in the same order? (a) 2992 0666 41441 (b) 9292 0664 1441 (c) 2992 0664 1441 (d) 2920 6641 441
23. 23.🔢 You want to remember the number 574617182480. Which chunked version keeps every digit in the same order? (a) 5746 1712 480 (b) 7546 1718 2480 (c) 5774 6171 82480 (d) 5746 1718 2480
24. 24.🔢 You want to remember the number 911164734. Which chunked version keeps every digit in the same order? (a) 991 116 4734 (b) 911 164 734 (c) 911 164 73 (d) 911 167 434
25. 25.📅 The digits 08032000 are a date: day, month, year. Which chunking shows the date? (a) 080/320/00 (b) 08/0320/00 (c) 0803/20/00 (d) 08/03/2000
26. 26.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
27. 27.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
28. 28.📅 The digits 09081958 are a date: day, month, year. Which chunking shows the date? (a) 0908/19/58 (b) 090/819/58 (c) 09/0819/58 (d) 09/08/1958
29. 29.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
30. 30.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
31. 31.📅 The digits 23092006 are a date: day, month, year. Which chunking shows the date? (a) 230/920/06 (b) 23/09/2006 (c) 23/0920/06 (d) 2309/20/06
32. 32.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
33. 33.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
34. 34.🔢 You want to remember the number 8768158154. Which chunked version keeps every digit in the same order? (a) 876 815 1854 (b) 868 158 154 (c) 876 815 81154 (d) 876 815 8154
35. 35.🔢 You want to remember the number 6485903718. Which chunked version keeps every digit in the same order? (a) 648 950 3718 (b) 648 590 33718 (c) 648 590 371 (d) 648 590 3718
36. 36.🔢 You want to remember the number 696658003. Which chunked version keeps every digit in the same order? (a) 696 665 8003 (b) 696 685 003 (c) 696 658 003 (d) 696 658 03
37. 37.📅 The digits 12121950 are a date: day, month, year. Which chunking shows the date? (a) 121/219/50 (b) 12/1219/50 (c) 12/12/1950 (d) 1212/19/50
38. 38.🔢 You want to remember the number 356116238. Which chunked version keeps every digit in the same order? (a) 356 111 6238 (b) 365 116 238 (c) 356 116 238 (d) 361 162 38
39. 39.🔢 You want to remember the number 2097112922. Which chunked version keeps every digit in the same order? (a) 200 971 12922 (b) 209 711 2922 (c) 029 711 2922 (d) 097 112 922
40. 40.📅 The digits 07082000 are a date: day, month, year. Which chunking shows the date? (a) 0708/20/00 (b) 07/08/2000 (c) 07/0820/00 (d) 070/820/00

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