Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 892 · 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.📅 The digits 15051991 are a date: day, month, year. Which chunking shows the date? (a) 15/05/1991 (b) 15/0519/91 (c) 1505/19/91 (d) 150/519/91
2. 2.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 and 947 (c) 1 9 4 7 (d) 194 and 7
3. 3.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
4. 4.🔢 You want to remember the number 890514019829. Which chunked version keeps every digit in the same order? (a) 8905 1401 9892 (b) 8905 1401 98229 (c) 8905 1409 829 (d) 8905 1401 9829
5. 5.📅 The digits 18071958 are a date: day, month, year. Which chunking shows the date? (a) 18/07/1958 (b) 18/0719/58 (c) 1807/19/58 (d) 180/719/58
6. 6.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is printed bigger (b) it is a smaller number (c) it has fewer digits (d) three chunks, not ten
7. 7.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
8. 8.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
9. 9.🔢 You want to remember the number 9933182012. Which chunked version keeps every digit in the same order? (a) 993 138 2012 (b) 993 318 212 (c) 999 331 82012 (d) 993 318 2012
10. 10.🔢 You want to remember the number 528484334. Which chunked version keeps every digit in the same order? (a) 524 843 34 (b) 528 488 4334 (c) 528 484 334 (d) 528 483 434
11. 11.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
12. 12.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
13. 13.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
14. 14.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
15. 15.📅 The digits 10052014 are a date: day, month, year. Which chunking shows the date? (a) 10/0520/14 (b) 10/05/2014 (c) 1005/20/14 (d) 100/520/14
16. 16.🔢 You want to remember the number 780716296018. Which chunked version keeps every digit in the same order? (a) 7807 1629 6018 (b) 7087 1629 6018 (c) 7807 1629 618 (d) 7880 7162 96018
17. 17.🔢 You want to remember the number 641700082. Which chunked version keeps every digit in the same order? (a) 641 700 082 (b) 417 000 82 (c) 641 700 028 (d) 641 700 0082
18. 18.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
19. 19.📅 The digits 26101960 are a date: day, month, year. Which chunking shows the date? (a) 26/10/1960 (b) 26/1019/60 (c) 261/019/60 (d) 2610/19/60
20. 20.🔢 You want to remember the number 420977589. Which chunked version keeps every digit in the same order? (a) 420 997 7589 (b) 420 975 789 (c) 420 977 58 (d) 420 977 589
21. 21.📅 The digits 04072013 are a date: day, month, year. Which chunking shows the date? (a) 040/720/13 (b) 04/07/2013 (c) 04/0720/13 (d) 0407/20/13
22. 22.📅 The digits 09051988 are a date: day, month, year. Which chunking shows the date? (a) 090/519/88 (b) 0905/19/88 (c) 09/05/1988 (d) 09/0519/88
23. 23.📅 The digits 06062014 are a date: day, month, year. Which chunking shows the date? (a) 060/620/14 (b) 06/0620/14 (c) 06/06/2014 (d) 0606/20/14
24. 24.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
25. 25.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
26. 26.📅 The digits 17112003 are a date: day, month, year. Which chunking shows the date? (a) 1711/20/03 (b) 17/1120/03 (c) 171/120/03 (d) 17/11/2003
27. 27.🔢 You want to remember the number 2142983981. Which chunked version keeps every digit in the same order? (a) 124 298 3981 (b) 212 983 981 (c) 214 298 3981 (d) 211 429 83981
28. 28.🔢 You want to remember the number 7817414294. Which chunked version keeps every digit in the same order? (a) 781 741 4294 (b) 781 741 42994 (c) 781 741 4249 (d) 781 741 494
29. 29.📅 The digits 13082017 are a date: day, month, year. Which chunking shows the date? (a) 130/820/17 (b) 13/0820/17 (c) 1308/20/17 (d) 13/08/2017
30. 30.📅 The digits 07022024 are a date: day, month, year. Which chunking shows the date? (a) 070/220/24 (b) 0702/20/24 (c) 07/02/2024 (d) 07/0220/24
31. 31.📅 The digits 15081996 are a date: day, month, year. Which chunking shows the date? (a) 15/0819/96 (b) 1508/19/96 (c) 150/819/96 (d) 15/08/1996
32. 32.📅 The digits 05082010 are a date: day, month, year. Which chunking shows the date? (a) 0508/20/10 (b) 05/0820/10 (c) 050/820/10 (d) 05/08/2010
33. 33.🔢 You want to remember the number 961272908887. Which chunked version keeps every digit in the same order? (a) 9612 7290 8887 (b) 9612 7729 08887 (c) 9612 2790 8887 (d) 9612 7908 887
34. 34.📅 The digits 25092002 are a date: day, month, year. Which chunking shows the date? (a) 250/920/02 (b) 25/0920/02 (c) 25/09/2002 (d) 2509/20/02
35. 35.🔢 You want to remember the number 712444896. Which chunked version keeps every digit in the same order? (a) 711 244 4896 (b) 712 444 896 (c) 712 448 96 (d) 712 448 496
36. 36.🔢 You want to remember the number 1616045487. Which chunked version keeps every digit in the same order? (a) 161 604 5487 (b) 161 604 54877 (c) 166 045 487 (d) 116 604 5487
37. 37.🔢 You want to remember the number 875551668194. Which chunked version keeps every digit in the same order? (a) 8755 5168 194 (b) 8755 5516 68194 (c) 8755 5166 8149 (d) 8755 5166 8194
38. 38.🔢 You want to remember the number 1831702912. Which chunked version keeps every digit in the same order? (a) 181 370 2912 (b) 183 102 912 (c) 183 170 2912 (d) 183 117 02912
39. 39.🔢 You want to remember the number 891427995. Which chunked version keeps every digit in the same order? (a) 914 279 95 (b) 891 427 959 (c) 891 427 9955 (d) 891 427 995
40. 40.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?

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