Mnemonics Worksheet: Chunking Numbers
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.
NameDateTime takenScore ___ / 40
- 1.🔢 You want to remember the number 676412160608. Which chunked version keeps every digit in the same order? (a) 6764 1216 6008 (b) 7641 2160 608 (c) 6676 4121 60608 (d) 6764 1216 0608
- 2.🔢 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
- 3.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 4.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 5.🔢 You want to remember the number 211407014. Which chunked version keeps every digit in the same order? (a) 211 407 0014 (b) 214 070 14 (c) 211 407 014 (d) 211 470 014
- 6.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 7.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 8.🔢 You want to remember the number 965846162558. Which chunked version keeps every digit in the same order? (a) 9658 4616 2558 (b) 9658 4616 2585 (c) 9658 6162 558 (d) 9658 4461 62558
- 9.📅 The digits 07111984 are a date: day, month, year. Which chunking shows the date? (a) 071/119/84 (b) 07/1119/84 (c) 0711/19/84 (d) 07/11/1984
- 10.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 11.🔢 You want to remember the number 802710744121. Which chunked version keeps every digit in the same order? (a) 8027 1074 4121 (b) 8027 1074 121 (c) 8027 1074 44121 (d) 0827 1074 4121
- 12.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 13.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 14.📅 The digits 21051974 are a date: day, month, year. Which chunking shows the date? (a) 21/05/1974 (b) 21/0519/74 (c) 210/519/74 (d) 2105/19/74
- 15.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 16.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 17.🔢 Chunking works for… (a) only pictures (b) nothing at all (c) only numbers (d) numbers and letter lists
- 18.🔢 What is chunking? (a) writing it twice (b) saying it backwards (c) reading very fast (d) splitting into groups
- 19.📅 The digits 16012015 are a date: day, month, year. Which chunking shows the date? (a) 1601/20/15 (b) 16/01/2015 (c) 160/120/15 (d) 16/0120/15
- 20.🔢 A chunk is easiest to keep when it… (a) changes daily (b) means something to you (c) is very long (d) has no pattern
- 21.🔢 You want to remember the number 205888500. Which chunked version keeps every digit in the same order? (a) 258 885 00 (b) 025 888 500 (c) 205 888 500 (d) 205 888 5500
- 22.🔢 You want to remember the number 540353542806. Which chunked version keeps every digit in the same order? (a) 5403 5354 22806 (b) 5403 5354 2860 (c) 5035 3542 806 (d) 5403 5354 2806
- 23.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 24.🔢 You want to remember the number 367227022. Which chunked version keeps every digit in the same order? (a) 367 227 02 (b) 367 222 7022 (c) 367 227 202 (d) 367 227 022
- 25.🔢 You want to remember the number 200827509. Which chunked version keeps every digit in the same order? (a) 200 082 7509 (b) 020 827 509 (c) 208 275 09 (d) 200 827 509
- 26.🔢 You want to remember the number 2291442661. Which chunked version keeps every digit in the same order? (a) 229 142 661 (b) 229 144 26661 (c) 229 144 2661 (d) 292 144 2661
- 27.🔢 You want to remember the number 878462683. Which chunked version keeps every digit in the same order? (a) 878 642 683 (b) 878 462 68 (c) 878 462 683 (d) 878 446 2683
- 28.🔢 You want to remember the number 592560083. Which chunked version keeps every digit in the same order? (a) 592 560 083 (b) 595 260 083 (c) 592 500 83 (d) 599 256 0083
- 29.🔢 You want to remember the number 6416702745. Which chunked version keeps every digit in the same order? (a) 641 670 2745 (b) 641 670 275 (c) 614 670 2745 (d) 664 167 02745
- 30.📅 The digits 21081953 are a date: day, month, year. Which chunking shows the date? (a) 21/0819/53 (b) 2108/19/53 (c) 21/08/1953 (d) 210/819/53
- 31.📅 The digits 02101972 are a date: day, month, year. Which chunking shows the date? (a) 021/019/72 (b) 02/1019/72 (c) 0210/19/72 (d) 02/10/1972
- 32.🔢 You want to remember the number 174380766519. Which chunked version keeps every digit in the same order? (a) 1743 8076 6159 (b) 1743 8076 66519 (c) 1743 8076 6519 (d) 1738 0766 519
- 33.📅 The digits 14112020 are a date: day, month, year. Which chunking shows the date? (a) 1411/20/20 (b) 14/11/2020 (c) 141/120/20 (d) 14/1120/20
- 34.📅 The digits 09091997 are a date: day, month, year. Which chunking shows the date? (a) 09/0919/97 (b) 0909/19/97 (c) 090/919/97 (d) 09/09/1997
- 35.📅 The digits 22101997 are a date: day, month, year. Which chunking shows the date? (a) 22/10/1997 (b) 22/1019/97 (c) 2210/19/97 (d) 221/019/97
- 36.📅 The digits 08121969 are a date: day, month, year. Which chunking shows the date? (a) 081/219/69 (b) 0812/19/69 (c) 08/1219/69 (d) 08/12/1969
- 37.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 1 and 947 (c) 19 and 47 (d) 194 and 7
- 38.📅 The digits 07011966 are a date: day, month, year. Which chunking shows the date? (a) 07/01/1966 (b) 07/0119/66 (c) 0701/19/66 (d) 070/119/66
- 39.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 40.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
Answer key
- 6764 1216 0608
- three chunks, not ten
- 3
- 9
- 211 407 014
- 8
- 4
- 9658 4616 2558
- 07/11/1984
- 3
- 8027 1074 4121
- 5
- 2
- 21/05/1974
- 4
- 8
- numbers and letter lists
- splitting into groups
- 16/01/2015
- means something to you
- 205 888 500
- 5403 5354 2806
- 6
- 367 227 022
- 200 827 509
- 229 144 2661
- 878 462 683
- 592 560 083
- 641 670 2745
- 21/08/1953
- 02/10/1972
- 1743 8076 6519
- 14/11/2020
- 09/09/1997
- 22/10/1997
- 08/12/1969
- 19 and 47
- 07/01/1966
- 2
- 7
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