Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 185 · 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 490798818. Which chunked version keeps every digit in the same order? (a) 940 798 818 (b) 490 798 818 (c) 490 798 8818 (d) 490 798 18
2. 2.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
3. 3.📅 The digits 08101984 are a date: day, month, year. Which chunking shows the date? (a) 08/1019/84 (b) 081/019/84 (c) 08/10/1984 (d) 0810/19/84
4. 4.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
6. 6.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) has no pattern (d) changes daily
7. 7.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
8. 8.📅 The digits 11071965 are a date: day, month, year. Which chunking shows the date? (a) 11/0719/65 (b) 110/719/65 (c) 1107/19/65 (d) 11/07/1965
9. 9.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
10. 10.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
11. 11.🔢 You want to remember the number 5872028925. Which chunked version keeps every digit in the same order? (a) 558 720 28925 (b) 572 028 925 (c) 587 022 8925 (d) 587 202 8925
12. 12.🔢 You want to remember the number 5659239203. Which chunked version keeps every digit in the same order? (a) 565 929 3203 (b) 565 592 39203 (c) 659 239 203 (d) 565 923 9203
13. 13.📅 The digits 04021997 are a date: day, month, year. Which chunking shows the date? (a) 04/02/1997 (b) 040/219/97 (c) 04/0219/97 (d) 0402/19/97
14. 14.🔢 You want to remember the number 487536625. Which chunked version keeps every digit in the same order? (a) 485 736 625 (b) 487 366 25 (c) 487 536 625 (d) 487 536 6625
15. 15.🔢 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
16. 16.🔢 You want to remember the number 721126046. Which chunked version keeps every digit in the same order? (a) 271 126 046 (b) 721 260 46 (c) 721 126 046 (d) 721 126 0466
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.📅 The digits 07112025 are a date: day, month, year. Which chunking shows the date? (a) 07/1120/25 (b) 071/120/25 (c) 0711/20/25 (d) 07/11/2025
19. 19.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
20. 20.🔢 You want to remember the number 270281149. Which chunked version keeps every digit in the same order? (a) 702 811 49 (b) 270 281 149 (c) 277 028 1149 (d) 270 281 194
21. 21.📅 The digits 23121973 are a date: day, month, year. Which chunking shows the date? (a) 231/219/73 (b) 23/12/1973 (c) 23/1219/73 (d) 2312/19/73
22. 22.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is a smaller number (c) three chunks, not ten (d) it is printed bigger
23. 23.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
24. 24.🔢 You want to remember the number 362735856. Which chunked version keeps every digit in the same order? (a) 362 733 5856 (b) 362 735 586 (c) 362 735 856 (d) 627 358 56
25. 25.🔢 You want to remember the number 4698924792. Which chunked version keeps every digit in the same order? (a) 469 892 479 (b) 469 892 47792 (c) 469 892 4792 (d) 496 892 4792
26. 26.🔢 You want to remember the number 461658476. Which chunked version keeps every digit in the same order? (a) 641 658 476 (b) 461 658 46 (c) 461 658 476 (d) 461 658 4766
27. 27.🔢 You want to remember the number 6154419571. Which chunked version keeps every digit in the same order? (a) 615 544 19571 (b) 651 441 9571 (c) 615 441 9571 (d) 615 441 957
28. 28.📅 The digits 10111956 are a date: day, month, year. Which chunking shows the date? (a) 101/119/56 (b) 10/1119/56 (c) 1011/19/56 (d) 10/11/1956
29. 29.📅 The digits 20111969 are a date: day, month, year. Which chunking shows the date? (a) 20/11/1969 (b) 201/119/69 (c) 2011/19/69 (d) 20/1119/69
30. 30.🔢 You want to remember the number 535950328. Which chunked version keeps every digit in the same order? (a) 535 950 3328 (b) 535 950 32 (c) 539 550 328 (d) 535 950 328
31. 31.📅 The digits 02111957 are a date: day, month, year. Which chunking shows the date? (a) 021/119/57 (b) 0211/19/57 (c) 02/1119/57 (d) 02/11/1957
32. 32.🔢 You want to remember the number 989155344. Which chunked version keeps every digit in the same order? (a) 989 155 34 (b) 989 155 3444 (c) 899 155 344 (d) 989 155 344
33. 33.🔢 You want to remember the number 545092304. Which chunked version keeps every digit in the same order? (a) 545 092 340 (b) 545 093 04 (c) 545 092 304 (d) 545 092 3304
34. 34.🔢 You want to remember the number 3710192726. Which chunked version keeps every digit in the same order? (a) 371 019 726 (b) 371 019 2276 (c) 337 101 92726 (d) 371 019 2726
35. 35.🔢 You want to remember the number 970824507569. Which chunked version keeps every digit in the same order? (a) 9708 2450 5769 (b) 9970 8245 07569 (c) 9082 4507 569 (d) 9708 2450 7569
36. 36.🔢 You want to remember the number 417076787. Which chunked version keeps every digit in the same order? (a) 417 076 787 (b) 417 076 778 (c) 417 076 7887 (d) 417 077 87
37. 37.🔢 What is chunking? (a) reading very fast (b) writing it twice (c) splitting into groups (d) saying it backwards
38. 38.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
39. 39.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
40. 40.🔢 You want to remember the number 259522472. Which chunked version keeps every digit in the same order? (a) 259 522 742 (b) 259 522 2472 (c) 259 522 42 (d) 259 522 472

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