Mnemonics Worksheet: Chunking Numbers

Memory techniques lesson 10: Chunking numbers · Set 520 · 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 20-digit number is split into chunks of 4 digits each. How many chunks is that?
2. 2.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) nothing at all (d) only numbers
3. 3.📅 The digits 09091972 are a date: day, month, year. Which chunking shows the date? (a) 0909/19/72 (b) 090/919/72 (c) 09/0919/72 (d) 09/09/1972
4. 4.📅 The digits 11011992 are a date: day, month, year. Which chunking shows the date? (a) 11/01/1992 (b) 110/119/92 (c) 11/0119/92 (d) 1101/19/92
5. 5.🔢 You want to remember the number 589136435016. Which chunked version keeps every digit in the same order? (a) 5891 3643 55016 (b) 5913 6435 016 (c) 5891 3643 5016 (d) 5891 3643 5106
6. 6.📅 The digits 05111953 are a date: day, month, year. Which chunking shows the date? (a) 05/11/1953 (b) 051/119/53 (c) 05/1119/53 (d) 0511/19/53
7. 7.📅 The digits 04102001 are a date: day, month, year. Which chunking shows the date? (a) 04/1020/01 (b) 0410/20/01 (c) 041/020/01 (d) 04/10/2001
8. 8.🔢 Instead of holding 8 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 2096681871. Which chunked version keeps every digit in the same order? (a) 209 668 871 (b) 209 668 18871 (c) 209 668 1871 (d) 209 686 1871
10. 10.🔢 You want to remember the number 909594500519. Which chunked version keeps every digit in the same order? (a) 9095 9450 019 (b) 9095 9450 0591 (c) 9095 9450 0519 (d) 9095 9450 05119
11. 11.🔢 You want to remember the number 102735243. Which chunked version keeps every digit in the same order? (a) 102 753 243 (b) 102 735 243 (c) 102 773 5243 (d) 102 735 43
12. 12.🔢 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
13. 13.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
14. 14.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
15. 15.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) three chunks, not ten (b) it is a smaller number (c) it is printed bigger (d) it has fewer digits
16. 16.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) is very long (d) changes daily
17. 17.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
18. 18.🔢 You want to remember the number 760326837. Which chunked version keeps every digit in the same order? (a) 603 268 37 (b) 760 326 387 (c) 776 032 6837 (d) 760 326 837
19. 19.🔢 You want to remember the number 274812142. Which chunked version keeps every digit in the same order? (a) 274 121 42 (b) 274 812 412 (c) 274 812 142 (d) 274 881 2142
20. 20.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
21. 21.📅 The digits 18061992 are a date: day, month, year. Which chunking shows the date? (a) 18/06/1992 (b) 1806/19/92 (c) 18/0619/92 (d) 180/619/92
22. 22.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) splitting into groups (d) reading very fast
23. 23.📅 The digits 16071984 are a date: day, month, year. Which chunking shows the date? (a) 160/719/84 (b) 16/0719/84 (c) 1607/19/84 (d) 16/07/1984
24. 24.📅 The digits 05011996 are a date: day, month, year. Which chunking shows the date? (a) 05/0119/96 (b) 05/01/1996 (c) 050/119/96 (d) 0501/19/96
25. 25.🔢 You want to remember the number 583931590. Which chunked version keeps every digit in the same order? (a) 583 931 950 (b) 583 931 590 (c) 539 315 90 (d) 583 993 1590
26. 26.🔢 You want to remember the number 613005312286. Which chunked version keeps every digit in the same order? (a) 6310 0531 2286 (b) 6130 0531 2286 (c) 6130 0531 22286 (d) 6130 0531 226
27. 27.🔢 You want to remember the number 806659288149. Which chunked version keeps every digit in the same order? (a) 8006 6592 88149 (b) 8065 9288 149 (c) 8065 6928 8149 (d) 8066 5928 8149
28. 28.🔢 You want to remember the number 585431435114. Which chunked version keeps every digit in the same order? (a) 5854 3143 5114 (b) 5854 3143 51114 (c) 5854 3134 5114 (d) 5843 1435 114
29. 29.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
30. 30.🔢 You want to remember the number 660428251785. Which chunked version keeps every digit in the same order? (a) 6604 2825 1785 (b) 6604 8251 785 (c) 6660 4282 51785 (d) 6604 2821 5785
31. 31.🔢 You want to remember the number 412103575. Which chunked version keeps every digit in the same order? (a) 412 103 575 (b) 412 103 5575 (c) 412 105 375 (d) 421 035 75
32. 32.🔢 You want to remember the number 1838676229. Which chunked version keeps every digit in the same order? (a) 138 676 229 (b) 183 867 6229 (c) 813 867 6229 (d) 183 867 76229
33. 33.🔢 You want to remember the number 642395829. Which chunked version keeps every digit in the same order? (a) 423 958 29 (b) 642 395 8299 (c) 642 395 829 (d) 643 295 829
34. 34.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
35. 35.🔢 You want to remember the number 3395927015. Which chunked version keeps every digit in the same order? (a) 339 592 701 (b) 339 599 27015 (c) 339 597 2015 (d) 339 592 7015
36. 36.📅 The digits 23111975 are a date: day, month, year. Which chunking shows the date? (a) 231/119/75 (b) 2311/19/75 (c) 23/1119/75 (d) 23/11/1975
37. 37.📅 The digits 26121998 are a date: day, month, year. Which chunking shows the date? (a) 261/219/98 (b) 2612/19/98 (c) 26/1219/98 (d) 26/12/1998
38. 38.🔢 You want to remember the number 8881658940. Which chunked version keeps every digit in the same order? (a) 888 165 8904 (b) 881 658 940 (c) 888 165 88940 (d) 888 165 8940
39. 39.📅 The digits 02101985 are a date: day, month, year. Which chunking shows the date? (a) 02/1019/85 (b) 0210/19/85 (c) 02/10/1985 (d) 021/019/85
40. 40.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?

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