Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 513 · 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 6230739700. Which chunked version keeps every digit in the same order? (a) 623 077 39700 (b) 623 073 970 (c) 620 373 9700 (d) 623 073 9700
2. 2.🔢 You want to remember the number 6159781419. Which chunked version keeps every digit in the same order? (a) 615 978 1419 (b) 615 978 141 (c) 615 997 81419 (d) 615 971 8419
3. 3.📅 The digits 07061975 are a date: day, month, year. Which chunking shows the date? (a) 0706/19/75 (b) 07/06/1975 (c) 07/0619/75 (d) 070/619/75
4. 4.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) three chunks, not ten (d) it has fewer digits
5. 5.🔢 You want to remember the number 247326533921. Which chunked version keeps every digit in the same order? (a) 2473 2653 3291 (b) 2473 2653 3921 (c) 2432 6533 921 (d) 2473 2655 33921
6. 6.🔢 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
7. 7.🔢 You want to remember the number 579131728507. Which chunked version keeps every digit in the same order? (a) 5791 3172 88507 (b) 5791 3178 507 (c) 5791 3172 8507 (d) 5791 3712 8507
8. 8.🔢 You want to remember the number 351028346. Which chunked version keeps every digit in the same order? (a) 531 028 346 (b) 351 028 346 (c) 335 102 8346 (d) 510 283 46
9. 9.🔢 You want to remember the number 3472124429. Which chunked version keeps every digit in the same order? (a) 347 124 429 (b) 342 712 4429 (c) 347 212 24429 (d) 347 212 4429
10. 10.🔢 You want to remember the number 4115052081. Which chunked version keeps every digit in the same order? (a) 411 505 2081 (b) 411 500 52081 (c) 411 505 2801 (d) 411 505 281
11. 11.🔢 You want to remember the number 7018984745. Which chunked version keeps every digit in the same order? (a) 708 198 4745 (b) 701 898 4745 (c) 718 984 745 (d) 701 899 84745
12. 12.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
13. 13.📅 The digits 05122001 are a date: day, month, year. Which chunking shows the date? (a) 05/1220/01 (b) 051/220/01 (c) 0512/20/01 (d) 05/12/2001
14. 14.🔢 You want to remember the number 315977101. Which chunked version keeps every digit in the same order? (a) 315 971 01 (b) 315 977 101 (c) 315 971 701 (d) 315 977 7101
15. 15.🔢 You want to remember the number 538494304. Which chunked version keeps every digit in the same order? (a) 538 494 30 (b) 538 494 304 (c) 583 494 304 (d) 538 449 4304
16. 16.📅 The digits 11042000 are a date: day, month, year. Which chunking shows the date? (a) 11/04/2000 (b) 11/0420/00 (c) 1104/20/00 (d) 110/420/00
17. 17.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
18. 18.🔢 You want to remember the number 7101736865. Which chunked version keeps every digit in the same order? (a) 170 173 6865 (b) 710 173 6865 (c) 710 173 68865 (d) 710 736 865
19. 19.📅 The digits 11121978 are a date: day, month, year. Which chunking shows the date? (a) 1112/19/78 (b) 11/1219/78 (c) 11/12/1978 (d) 111/219/78
20. 20.🔢 You want to remember the number 5826304235. Which chunked version keeps every digit in the same order? (a) 582 630 42235 (b) 582 630 4235 (c) 582 304 235 (d) 586 230 4235
21. 21.🔢 You want to remember the number 751819906727. Which chunked version keeps every digit in the same order? (a) 7518 1990 6727 (b) 7751 8199 06727 (c) 7158 1990 6727 (d) 7181 9906 727
22. 22.🔢 You want to remember the number 980087797987. Which chunked version keeps every digit in the same order? (a) 9800 8777 9987 (b) 9800 8779 79887 (c) 9800 8779 787 (d) 9800 8779 7987
23. 23.📅 The digits 13041993 are a date: day, month, year. Which chunking shows the date? (a) 1304/19/93 (b) 13/0419/93 (c) 13/04/1993 (d) 130/419/93
24. 24.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
25. 25.🔢 You want to remember the number 212801396382. Which chunked version keeps every digit in the same order? (a) 1280 1396 382 (b) 2128 0193 6382 (c) 2128 0139 6382 (d) 2128 0139 63382
26. 26.📅 The digits 04101990 are a date: day, month, year. Which chunking shows the date? (a) 0410/19/90 (b) 041/019/90 (c) 04/1019/90 (d) 04/10/1990
27. 27.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
28. 28.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
29. 29.🔢 You want to remember the number 3809810640. Which chunked version keeps every digit in the same order? (a) 380 980 1640 (b) 809 810 640 (c) 380 981 0640 (d) 380 981 06440
30. 30.🔢 Instead of holding 11 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 913879068729. Which chunked version keeps every digit in the same order? (a) 9138 7906 729 (b) 9138 7906 87229 (c) 9138 7906 8279 (d) 9138 7906 8729
32. 32.📅 The digits 24031963 are a date: day, month, year. Which chunking shows the date? (a) 240/319/63 (b) 24/03/1963 (c) 24/0319/63 (d) 2403/19/63
33. 33.🔢 You want to remember the number 461087402717. Which chunked version keeps every digit in the same order? (a) 4610 8740 27117 (b) 4610 8740 2177 (c) 4610 8740 2717 (d) 4610 8402 717
34. 34.🔢 You want to remember the number 721872682. Which chunked version keeps every digit in the same order? (a) 721 826 82 (b) 721 872 682 (c) 728 172 682 (d) 721 887 2682
35. 35.🔢 You want to remember the number 505016873. Which chunked version keeps every digit in the same order? (a) 505 016 873 (b) 505 061 873 (c) 050 168 73 (d) 505 016 8733
36. 36.🔢 You want to remember the number 2405402757. Which chunked version keeps every digit in the same order? (a) 240 542 757 (b) 240 540 27557 (c) 240 540 2757 (d) 204 540 2757
37. 37.📅 The digits 02121998 are a date: day, month, year. Which chunking shows the date? (a) 021/219/98 (b) 0212/19/98 (c) 02/1219/98 (d) 02/12/1998
38. 38.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
39. 39.🔢 You want to remember the number 6107283917. Which chunked version keeps every digit in the same order? (a) 610 278 3917 (b) 617 283 917 (c) 610 772 83917 (d) 610 728 3917
40. 40.🔢 You want to remember the number 241678403301. Which chunked version keeps every digit in the same order? (a) 2411 6784 03301 (b) 2416 7840 3310 (c) 2416 7803 301 (d) 2416 7840 3301

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