Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 360 · 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 238304333. Which chunked version keeps every digit in the same order? (a) 283 304 333 (b) 283 043 33 (c) 238 304 333 (d) 238 300 4333
2. 2.📅 The digits 06021959 are a date: day, month, year. Which chunking shows the date? (a) 06/0219/59 (b) 06/02/1959 (c) 060/219/59 (d) 0602/19/59
3. 3.🔢 You want to remember the number 878068286. Which chunked version keeps every digit in the same order? (a) 878 068 2286 (b) 878 682 86 (c) 878 608 286 (d) 878 068 286
4. 4.🔢 You want to remember the number 551851452. Which chunked version keeps every digit in the same order? (a) 551 815 452 (b) 551 851 452 (c) 518 514 52 (d) 555 185 1452
5. 5.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
6. 6.📅 The digits 25031965 are a date: day, month, year. Which chunking shows the date? (a) 25/03/1965 (b) 25/0319/65 (c) 250/319/65 (d) 2503/19/65
7. 7.🔢 You want to remember the number 733730015. Which chunked version keeps every digit in the same order? (a) 733 730 105 (b) 733 730 01 (c) 733 730 0015 (d) 733 730 015
8. 8.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) changes daily (d) has no pattern
9. 9.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
10. 10.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
11. 11.🔢 You want to remember the number 509397419. Which chunked version keeps every digit in the same order? (a) 509 399 7419 (b) 509 394 719 (c) 509 397 419 (d) 509 397 49
12. 12.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 194 and 7 (c) 1 9 4 7 (d) 1 and 947
13. 13.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
14. 14.🔢 You want to remember the number 387749883118. Which chunked version keeps every digit in the same order? (a) 3877 4988 31188 (b) 8377 4988 3118 (c) 3877 4988 3118 (d) 3877 4988 118
15. 15.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is printed bigger (c) it is a smaller number (d) it has fewer digits
16. 16.📅 The digits 01081980 are a date: day, month, year. Which chunking shows the date? (a) 0108/19/80 (b) 01/08/1980 (c) 01/0819/80 (d) 010/819/80
17. 17.📅 The digits 12072005 are a date: day, month, year. Which chunking shows the date? (a) 12/07/2005 (b) 12/0720/05 (c) 120/720/05 (d) 1207/20/05
18. 18.🔢 Chunking works for… (a) only numbers (b) only pictures (c) numbers and letter lists (d) nothing at all
19. 19.🔢 You want to remember the number 851568521306. Which chunked version keeps every digit in the same order? (a) 8156 8521 306 (b) 8551 6852 1306 (c) 8515 6852 13306 (d) 8515 6852 1306
20. 20.🔢 You want to remember the number 3314153672. Which chunked version keeps every digit in the same order? (a) 331 415 3672 (b) 331 415 36772 (c) 331 153 672 (d) 331 413 5672
21. 21.🔢 You want to remember the number 925888941994. Which chunked version keeps every digit in the same order? (a) 9528 8894 1994 (b) 9258 8894 1994 (c) 9258 8841 994 (d) 9258 8894 11994
22. 22.🔢 You want to remember the number 312781689. Which chunked version keeps every digit in the same order? (a) 312 716 89 (b) 317 281 689 (c) 312 781 689 (d) 331 278 1689
23. 23.🔢 You want to remember the number 7168379812. Which chunked version keeps every digit in the same order? (a) 716 837 981 (b) 716 837 9182 (c) 716 837 79812 (d) 716 837 9812
24. 24.🔢 You want to remember the number 905898253. Which chunked version keeps every digit in the same order? (a) 905 898 253 (b) 905 892 53 (c) 905 889 253 (d) 900 589 8253
25. 25.📅 The digits 15022022 are a date: day, month, year. Which chunking shows the date? (a) 15/02/2022 (b) 150/220/22 (c) 1502/20/22 (d) 15/0220/22
26. 26.📅 The digits 08061953 are a date: day, month, year. Which chunking shows the date? (a) 08/0619/53 (b) 0806/19/53 (c) 08/06/1953 (d) 080/619/53
27. 27.📅 The digits 21101985 are a date: day, month, year. Which chunking shows the date? (a) 21/1019/85 (b) 211/019/85 (c) 21/10/1985 (d) 2110/19/85
28. 28.🔢 You want to remember the number 5925327037. Which chunked version keeps every digit in the same order? (a) 925 327 037 (b) 592 253 27037 (c) 592 532 7037 (d) 592 523 7037
29. 29.🔢 You want to remember the number 8658071168. Which chunked version keeps every digit in the same order? (a) 865 807 1168 (b) 865 807 118 (c) 856 807 1168 (d) 865 580 71168
30. 30.📅 The digits 03091968 are a date: day, month, year. Which chunking shows the date? (a) 0309/19/68 (b) 03/09/1968 (c) 03/0919/68 (d) 030/919/68
31. 31.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
32. 32.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
33. 33.📅 The digits 14031955 are a date: day, month, year. Which chunking shows the date? (a) 1403/19/55 (b) 140/319/55 (c) 14/0319/55 (d) 14/03/1955
34. 34.📅 The digits 16082002 are a date: day, month, year. Which chunking shows the date? (a) 16/0820/02 (b) 160/820/02 (c) 1608/20/02 (d) 16/08/2002
35. 35.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
36. 36.🔢 You want to remember the number 230539124709. Which chunked version keeps every digit in the same order? (a) 2305 3991 24709 (b) 2035 3912 4709 (c) 2305 3912 709 (d) 2305 3912 4709
37. 37.🔢 You want to remember the number 2430341486. Which chunked version keeps every digit in the same order? (a) 243 034 148 (b) 243 034 1468 (c) 243 034 14886 (d) 243 034 1486
38. 38.📅 The digits 24112025 are a date: day, month, year. Which chunking shows the date? (a) 24/11/2025 (b) 241/120/25 (c) 24/1120/25 (d) 2411/20/25
39. 39.📅 The digits 23071988 are a date: day, month, year. Which chunking shows the date? (a) 230/719/88 (b) 23/07/1988 (c) 2307/19/88 (d) 23/0719/88
40. 40.🔢 You want to remember the number 681074655. Which chunked version keeps every digit in the same order? (a) 680 174 655 (b) 681 074 4655 (c) 810 746 55 (d) 681 074 655

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