Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 442 · 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 4-digit number is split into chunks of 2 digits each. How many chunks is that?
2. 2.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
3. 3.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) reading very fast (d) saying it backwards
4. 4.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) it is a smaller number (d) three chunks, not ten
5. 5.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 1 and 947 (d) 19 and 47
6. 6.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
7. 7.🔢 You want to remember the number 348228175. Which chunked version keeps every digit in the same order? (a) 348 228 175 (b) 348 221 875 (c) 348 228 1755 (d) 348 221 75
8. 8.🔢 You want to remember the number 164350402408. Which chunked version keeps every digit in the same order? (a) 1643 5040 24408 (b) 1643 5040 2408 (c) 1635 0402 408 (d) 1643 5040 4208
9. 9.🔢 You want to remember the number 661630051. Which chunked version keeps every digit in the same order? (a) 666 163 0051 (b) 661 630 501 (c) 661 630 051 (d) 666 300 51
10. 10.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
11. 11.🔢 You want to remember the number 9938101017. Which chunked version keeps every digit in the same order? (a) 993 811 01017 (b) 993 810 101 (c) 993 810 1017 (d) 993 811 0017
12. 12.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) has no pattern (d) changes daily
13. 13.🔢 You want to remember the number 3507882666. Which chunked version keeps every digit in the same order? (a) 307 882 666 (b) 350 788 2666 (c) 350 788 26666 (d) 305 788 2666
14. 14.📅 The digits 02021964 are a date: day, month, year. Which chunking shows the date? (a) 0202/19/64 (b) 020/219/64 (c) 02/02/1964 (d) 02/0219/64
15. 15.🔢 You want to remember the number 701044507. Which chunked version keeps every digit in the same order? (a) 701 044 57 (b) 701 044 507 (c) 701 044 057 (d) 701 044 5007
16. 16.📅 The digits 23121975 are a date: day, month, year. Which chunking shows the date? (a) 231/219/75 (b) 2312/19/75 (c) 23/12/1975 (d) 23/1219/75
17. 17.🔢 You want to remember the number 546664029. Which chunked version keeps every digit in the same order? (a) 546 666 4029 (b) 546 640 29 (c) 546 664 029 (d) 546 660 429
18. 18.🔢 You want to remember the number 590455334752. Which chunked version keeps every digit in the same order? (a) 5990 4553 34752 (b) 5094 5533 4752 (c) 5904 5533 452 (d) 5904 5533 4752
19. 19.🔢 You want to remember the number 903546984044. Which chunked version keeps every digit in the same order? (a) 9035 6498 4044 (b) 9034 6984 044 (c) 9035 5469 84044 (d) 9035 4698 4044
20. 20.🔢 You want to remember the number 5446385531. Which chunked version keeps every digit in the same order? (a) 544 368 5531 (b) 544 638 5531 (c) 544 685 531 (d) 544 463 85531
21. 21.📅 The digits 18071954 are a date: day, month, year. Which chunking shows the date? (a) 18/0719/54 (b) 180/719/54 (c) 18/07/1954 (d) 1807/19/54
22. 22.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
23. 23.🔢 You want to remember the number 621379967457. Which chunked version keeps every digit in the same order? (a) 6213 7969 7457 (b) 6213 7996 757 (c) 6213 7996 7457 (d) 6211 3799 67457
24. 24.📅 The digits 23071968 are a date: day, month, year. Which chunking shows the date? (a) 2307/19/68 (b) 23/0719/68 (c) 230/719/68 (d) 23/07/1968
25. 25.📅 The digits 24071998 are a date: day, month, year. Which chunking shows the date? (a) 240/719/98 (b) 2407/19/98 (c) 24/0719/98 (d) 24/07/1998
26. 26.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
27. 27.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
28. 28.📅 The digits 18031973 are a date: day, month, year. Which chunking shows the date? (a) 18/03/1973 (b) 180/319/73 (c) 18/0319/73 (d) 1803/19/73
29. 29.🔢 You want to remember the number 132777894637. Which chunked version keeps every digit in the same order? (a) 1327 7894 637 (b) 1327 7789 4637 (c) 1327 7789 46337 (d) 3127 7789 4637
30. 30.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
31. 31.🔢 You want to remember the number 5014023733. Which chunked version keeps every digit in the same order? (a) 501 402 373 (b) 504 102 3733 (c) 501 140 23733 (d) 501 402 3733
32. 32.🔢 You want to remember the number 211973312. Which chunked version keeps every digit in the same order? (a) 211 973 32 (b) 211 973 312 (c) 121 973 312 (d) 221 197 3312
33. 33.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
34. 34.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
35. 35.🔢 You want to remember the number 667211479. Which chunked version keeps every digit in the same order? (a) 667 211 479 (b) 667 214 79 (c) 667 211 4799 (d) 667 211 497
36. 36.📅 The digits 01012021 are a date: day, month, year. Which chunking shows the date? (a) 01/0120/21 (b) 01/01/2021 (c) 0101/20/21 (d) 010/120/21
37. 37.🔢 You want to remember the number 4656700964. Which chunked version keeps every digit in the same order? (a) 466 700 964 (b) 465 760 0964 (c) 466 567 00964 (d) 465 670 0964
38. 38.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
39. 39.📅 The digits 09081961 are a date: day, month, year. Which chunking shows the date? (a) 09/0819/61 (b) 0908/19/61 (c) 090/819/61 (d) 09/08/1961
40. 40.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?

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