Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 640 · 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.🔢 You want to remember the number 345352917. Which chunked version keeps every digit in the same order? (a) 453 529 17 (b) 345 352 917 (c) 344 535 2917 (d) 345 532 917
2. 2.🔢 You want to remember the number 401691890. Which chunked version keeps every digit in the same order? (a) 401 691 90 (b) 406 191 890 (c) 401 691 890 (d) 401 691 8990
3. 3.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
4. 4.🔢 What is chunking? (a) splitting into groups (b) writing it twice (c) reading very fast (d) saying it backwards
5. 5.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
6. 6.🔢 You want to remember the number 696709922. Which chunked version keeps every digit in the same order? (a) 696 709 9922 (b) 966 709 922 (c) 696 709 22 (d) 696 709 922
7. 7.🔢 You want to remember the number 901141204044. Which chunked version keeps every digit in the same order? (a) 9011 4112 04044 (b) 9014 1120 4044 (c) 9014 1204 044 (d) 9011 4120 4044
8. 8.🔢 You want to remember the number 244110353. Which chunked version keeps every digit in the same order? (a) 244 101 353 (b) 244 110 353 (c) 244 110 0353 (d) 241 103 53
9. 9.🔢 You want to remember the number 689614493. Which chunked version keeps every digit in the same order? (a) 689 614 493 (b) 686 914 493 (c) 689 614 93 (d) 689 614 4493
10. 10.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) three chunks, not ten (d) it has fewer digits
11. 11.🔢 You want to remember the number 210863611115. Which chunked version keeps every digit in the same order? (a) 2110 8636 11115 (b) 2108 6361 1115 (c) 2108 6611 115 (d) 2108 6316 1115
12. 12.📅 The digits 07072011 are a date: day, month, year. Which chunking shows the date? (a) 07/0720/11 (b) 0707/20/11 (c) 07/07/2011 (d) 070/720/11
13. 13.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 194 and 7 (d) 1 9 4 7
14. 14.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
15. 15.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
17. 17.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
18. 18.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
19. 19.📅 The digits 04021959 are a date: day, month, year. Which chunking shows the date? (a) 04/0219/59 (b) 04/02/1959 (c) 040/219/59 (d) 0402/19/59
20. 20.🔢 You want to remember the number 829262559. Which chunked version keeps every digit in the same order? (a) 829 262 559 (b) 829 625 59 (c) 289 262 559 (d) 829 262 5559
21. 21.🔢 You want to remember the number 521738598. Which chunked version keeps every digit in the same order? (a) 521 735 98 (b) 521 738 598 (c) 521 773 8598 (d) 521 738 958
22. 22.🔢 You want to remember the number 5210945616. Which chunked version keeps every digit in the same order? (a) 521 094 5616 (b) 521 094 566 (c) 521 094 5166 (d) 521 094 55616
23. 23.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
24. 24.🔢 You want to remember the number 112858091. Which chunked version keeps every digit in the same order? (a) 111 285 8091 (b) 112 858 091 (c) 112 858 91 (d) 112 850 891
25. 25.🔢 You want to remember the number 504223216972. Which chunked version keeps every digit in the same order? (a) 0542 2321 6972 (b) 5042 2321 6972 (c) 5042 3216 972 (d) 5042 2232 16972
26. 26.🔢 You want to remember the number 6253417718. Which chunked version keeps every digit in the same order? (a) 625 341 17718 (b) 625 341 7178 (c) 625 341 7718 (d) 623 417 718
27. 27.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
28. 28.📅 The digits 24101986 are a date: day, month, year. Which chunking shows the date? (a) 241/019/86 (b) 24/10/1986 (c) 24/1019/86 (d) 2410/19/86
29. 29.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
30. 30.📅 The digits 17052013 are a date: day, month, year. Which chunking shows the date? (a) 17/0520/13 (b) 1705/20/13 (c) 17/05/2013 (d) 170/520/13
31. 31.🔢 You want to remember the number 8969752254. Which chunked version keeps every digit in the same order? (a) 896 997 52254 (b) 896 975 2254 (c) 986 975 2254 (d) 896 975 254
32. 32.🔢 You want to remember the number 661387955692. Which chunked version keeps every digit in the same order? (a) 6618 7955 692 (b) 6613 8795 5692 (c) 6613 8795 55692 (d) 6613 8795 6592
33. 33.📅 The digits 07121983 are a date: day, month, year. Which chunking shows the date? (a) 0712/19/83 (b) 07/1219/83 (c) 071/219/83 (d) 07/12/1983
34. 34.🔢 You want to remember the number 269862531. Which chunked version keeps every digit in the same order? (a) 269 826 531 (b) 269 825 31 (c) 269 886 2531 (d) 269 862 531
35. 35.🔢 You want to remember the number 793137416998. Which chunked version keeps every digit in the same order? (a) 7931 3716 998 (b) 7931 3741 6998 (c) 7931 1374 16998 (d) 9731 3741 6998
36. 36.🔢 You want to remember the number 566927831. Which chunked version keeps every digit in the same order? (a) 566 927 31 (b) 566 927 831 (c) 566 692 7831 (d) 566 927 813
37. 37.📅 The digits 13121978 are a date: day, month, year. Which chunking shows the date? (a) 1312/19/78 (b) 13/1219/78 (c) 131/219/78 (d) 13/12/1978
38. 38.🔢 You want to remember the number 405032220. Which chunked version keeps every digit in the same order? (a) 405 032 220 (b) 405 503 2220 (c) 400 532 220 (d) 450 322 20
39. 39.🔢 You want to remember the number 246906712. Which chunked version keeps every digit in the same order? (a) 244 690 6712 (b) 246 907 12 (c) 246 096 712 (d) 246 906 712
40. 40.🔢 You want to remember the number 613286566. Which chunked version keeps every digit in the same order? (a) 613 286 56 (b) 613 286 566 (c) 613 286 6566 (d) 613 826 566

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