Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 257 · 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.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
2. 2.📅 The digits 28071969 are a date: day, month, year. Which chunking shows the date? (a) 28/0719/69 (b) 280/719/69 (c) 28/07/1969 (d) 2807/19/69
3. 3.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
4. 4.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
5. 5.📅 The digits 11081978 are a date: day, month, year. Which chunking shows the date? (a) 11/0819/78 (b) 11/08/1978 (c) 1108/19/78 (d) 110/819/78
6. 6.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
7. 7.🔢 You want to remember the number 367128654. Which chunked version keeps every digit in the same order? (a) 367 218 654 (b) 367 128 654 (c) 367 126 54 (d) 367 712 8654
8. 8.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
9. 9.📅 The digits 21111969 are a date: day, month, year. Which chunking shows the date? (a) 211/119/69 (b) 21/1119/69 (c) 2111/19/69 (d) 21/11/1969
10. 10.📅 The digits 24042006 are a date: day, month, year. Which chunking shows the date? (a) 24/04/2006 (b) 24/0420/06 (c) 240/420/06 (d) 2404/20/06
11. 11.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
12. 12.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
13. 13.🔢 You want to remember the number 504828098. Which chunked version keeps every digit in the same order? (a) 548 280 98 (b) 540 828 098 (c) 500 482 8098 (d) 504 828 098
14. 14.📅 The digits 13092009 are a date: day, month, year. Which chunking shows the date? (a) 130/920/09 (b) 13/09/2009 (c) 1309/20/09 (d) 13/0920/09
15. 15.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
16. 16.🔢 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
17. 17.📅 The digits 16032017 are a date: day, month, year. Which chunking shows the date? (a) 1603/20/17 (b) 160/320/17 (c) 16/03/2017 (d) 16/0320/17
18. 18.🔢 You want to remember the number 488101480552. Which chunked version keeps every digit in the same order? (a) 4810 1480 552 (b) 4818 0148 0552 (c) 4488 1014 80552 (d) 4881 0148 0552
19. 19.🔢 A chunk is easiest to keep when it… (a) is very long (b) means something to you (c) changes daily (d) has no pattern
20. 20.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
21. 21.📅 The digits 01111972 are a date: day, month, year. Which chunking shows the date? (a) 011/119/72 (b) 01/1119/72 (c) 01/11/1972 (d) 0111/19/72
22. 22.🔢 You want to remember the number 3769696666. Which chunked version keeps every digit in the same order? (a) 367 969 6666 (b) 769 696 666 (c) 376 969 66666 (d) 376 969 6666
23. 23.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
24. 24.🔢 You want to remember the number 8371462216. Which chunked version keeps every digit in the same order? (a) 837 416 2216 (b) 837 144 62216 (c) 837 146 2216 (d) 837 146 221
25. 25.🔢 You want to remember the number 866323064. Which chunked version keeps every digit in the same order? (a) 866 632 3064 (b) 866 323 064 (c) 866 323 046 (d) 863 230 64
26. 26.📅 The digits 28022024 are a date: day, month, year. Which chunking shows the date? (a) 28/02/2024 (b) 2802/20/24 (c) 280/220/24 (d) 28/0220/24
27. 27.🔢 Which is a good way to chunk the year 1947? (a) 19 and 47 (b) 1 9 4 7 (c) 1 and 947 (d) 194 and 7
28. 28.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
29. 29.🔢 What is chunking? (a) splitting into groups (b) saying it backwards (c) writing it twice (d) reading very fast
30. 30.🔢 You want to remember the number 8830942905. Which chunked version keeps every digit in the same order? (a) 883 094 2905 (b) 830 942 905 (c) 880 394 2905 (d) 888 309 42905
31. 31.📅 The digits 25081965 are a date: day, month, year. Which chunking shows the date? (a) 2508/19/65 (b) 250/819/65 (c) 25/0819/65 (d) 25/08/1965
32. 32.📅 The digits 23041953 are a date: day, month, year. Which chunking shows the date? (a) 230/419/53 (b) 23/0419/53 (c) 2304/19/53 (d) 23/04/1953
33. 33.🔢 You want to remember the number 528342981. Which chunked version keeps every digit in the same order? (a) 582 342 981 (b) 528 334 2981 (c) 528 329 81 (d) 528 342 981
34. 34.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
35. 35.📅 The digits 03121979 are a date: day, month, year. Which chunking shows the date? (a) 03/12/1979 (b) 03/1219/79 (c) 031/219/79 (d) 0312/19/79
36. 36.📅 The digits 04101977 are a date: day, month, year. Which chunking shows the date? (a) 041/019/77 (b) 0410/19/77 (c) 04/1019/77 (d) 04/10/1977
37. 37.📅 The digits 20072019 are a date: day, month, year. Which chunking shows the date? (a) 200/720/19 (b) 20/07/2019 (c) 2007/20/19 (d) 20/0720/19
38. 38.🔢 You want to remember the number 228885273. Which chunked version keeps every digit in the same order? (a) 228 885 73 (b) 228 885 273 (c) 228 882 573 (d) 228 888 5273
39. 39.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
40. 40.🔢 You want to remember the number 117992775. Which chunked version keeps every digit in the same order? (a) 117 992 775 (b) 117 992 7755 (c) 119 927 75 (d) 171 992 775

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