Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 370 · 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.🔢 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
2. 2.📅 The digits 02091975 are a date: day, month, year. Which chunking shows the date? (a) 02/0919/75 (b) 020/919/75 (c) 0209/19/75 (d) 02/09/1975
3. 3.🔢 You want to remember the number 769952108. Which chunked version keeps every digit in the same order? (a) 769 952 018 (b) 769 952 108 (c) 769 521 08 (d) 766 995 2108
4. 4.🔢 You want to remember the number 272246350. Which chunked version keeps every digit in the same order? (a) 272 463 50 (b) 272 246 305 (c) 272 246 3550 (d) 272 246 350
5. 5.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 194 and 7 (c) 1 9 4 7 (d) 19 and 47
6. 6.🔢 You want to remember the number 3509977264. Which chunked version keeps every digit in the same order? (a) 350 997 724 (b) 305 997 7264 (c) 350 999 77264 (d) 350 997 7264
7. 7.🔢 You want to remember the number 587942852. Which chunked version keeps every digit in the same order? (a) 587 942 852 (b) 587 942 8852 (c) 879 428 52 (d) 587 948 252
8. 8.🔢 You want to remember the number 938027022071. Which chunked version keeps every digit in the same order? (a) 9388 0270 22071 (b) 9380 7202 2071 (c) 9380 2702 2071 (d) 9380 2722 071
9. 9.📅 The digits 09052019 are a date: day, month, year. Which chunking shows the date? (a) 09/0520/19 (b) 09/05/2019 (c) 0905/20/19 (d) 090/520/19
10. 10.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
11. 11.📅 The digits 27021996 are a date: day, month, year. Which chunking shows the date? (a) 270/219/96 (b) 2702/19/96 (c) 27/02/1996 (d) 27/0219/96
12. 12.🔢 A chunk is easiest to keep when it… (a) is very long (b) changes daily (c) has no pattern (d) means something to you
13. 13.📅 The digits 28122009 are a date: day, month, year. Which chunking shows the date? (a) 281/220/09 (b) 2812/20/09 (c) 28/12/2009 (d) 28/1220/09
14. 14.🔢 You want to remember the number 835095868. Which chunked version keeps every digit in the same order? (a) 835 095 8668 (b) 835 095 868 (c) 835 058 68 (d) 385 095 868
15. 15.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.🔢 What is chunking? (a) reading very fast (b) saying it backwards (c) splitting into groups (d) writing it twice
17. 17.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
18. 18.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
19. 19.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
20. 20.📅 The digits 15081954 are a date: day, month, year. Which chunking shows the date? (a) 15/0819/54 (b) 1508/19/54 (c) 15/08/1954 (d) 150/819/54
21. 21.🔢 You want to remember the number 7446462493. Which chunked version keeps every digit in the same order? (a) 744 646 2493 (b) 474 646 2493 (c) 744 646 243 (d) 774 464 62493
22. 22.🔢 You want to remember the number 8673218447. Which chunked version keeps every digit in the same order? (a) 867 312 8447 (b) 867 321 8447 (c) 867 321 844 (d) 886 732 18447
23. 23.📅 The digits 10061990 are a date: day, month, year. Which chunking shows the date? (a) 1006/19/90 (b) 10/06/1990 (c) 100/619/90 (d) 10/0619/90
24. 24.📅 The digits 02012007 are a date: day, month, year. Which chunking shows the date? (a) 02/01/2007 (b) 020/120/07 (c) 02/0120/07 (d) 0201/20/07
25. 25.🔢 You want to remember the number 371015240. Which chunked version keeps every digit in the same order? (a) 371 015 2400 (b) 371 015 240 (c) 317 015 240 (d) 371 015 24
26. 26.📅 The digits 15051965 are a date: day, month, year. Which chunking shows the date? (a) 15/0519/65 (b) 1505/19/65 (c) 15/05/1965 (d) 150/519/65
27. 27.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
28. 28.🔢 You want to remember the number 247434532046. Which chunked version keeps every digit in the same order? (a) 2474 3453 0246 (b) 2443 4532 046 (c) 2474 3453 20466 (d) 2474 3453 2046
29. 29.🔢 You want to remember the number 2115778541. Which chunked version keeps every digit in the same order? (a) 115 778 541 (b) 121 577 8541 (c) 211 577 8541 (d) 211 577 78541
30. 30.🔢 You want to remember the number 302910955. Which chunked version keeps every digit in the same order? (a) 309 109 55 (b) 302 919 055 (c) 302 910 955 (d) 302 910 9955
31. 31.📅 The digits 27061987 are a date: day, month, year. Which chunking shows the date? (a) 270/619/87 (b) 27/0619/87 (c) 2706/19/87 (d) 27/06/1987
32. 32.🔢 You want to remember the number 198021353. Which chunked version keeps every digit in the same order? (a) 980 213 53 (b) 198 002 1353 (c) 190 821 353 (d) 198 021 353
33. 33.📅 The digits 03102015 are a date: day, month, year. Which chunking shows the date? (a) 031/020/15 (b) 0310/20/15 (c) 03/10/2015 (d) 03/1020/15
34. 34.📅 The digits 15091966 are a date: day, month, year. Which chunking shows the date? (a) 150/919/66 (b) 15/0919/66 (c) 15/09/1966 (d) 1509/19/66
35. 35.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
36. 36.🔢 You want to remember the number 815098861856. Which chunked version keeps every digit in the same order? (a) 8109 8861 856 (b) 8510 9886 1856 (c) 8150 9886 18566 (d) 8150 9886 1856
37. 37.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
38. 38.📅 The digits 06011994 are a date: day, month, year. Which chunking shows the date? (a) 06/0119/94 (b) 0601/19/94 (c) 060/119/94 (d) 06/01/1994
39. 39.🔢 You want to remember the number 940817525. Which chunked version keeps every digit in the same order? (a) 940 817 525 (b) 940 881 7525 (c) 940 817 52 (d) 904 817 525
40. 40.🔢 You want to remember the number 4142529257. Which chunked version keeps every digit in the same order? (a) 411 425 29257 (b) 412 452 9257 (c) 414 259 257 (d) 414 252 9257

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