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.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 2.🔢 You want to remember the number 877924722. Which chunked version keeps every digit in the same order? (a) 877 924 4722 (b) 877 924 722 (c) 879 247 22 (d) 877 924 272
- 3.🔢 You want to remember the number 910966596. Which chunked version keeps every digit in the same order? (a) 910 696 596 (b) 910 966 6596 (c) 910 966 596 (d) 910 665 96
- 4.🔢 You want to remember the number 539282964. Which chunked version keeps every digit in the same order? (a) 539 282 94 (b) 539 282 2964 (c) 539 282 946 (d) 539 282 964
- 5.🔢 A chunk is easiest to keep when it… (a) means something to you (b) has no pattern (c) changes daily (d) is very long
- 6.📅 The digits 13102003 are a date: day, month, year. Which chunking shows the date? (a) 13/10/2003 (b) 131/020/03 (c) 1310/20/03 (d) 13/1020/03
- 7.🔢 You want to remember the number 100815413. Which chunked version keeps every digit in the same order? (a) 100 815 4113 (b) 010 815 413 (c) 100 815 413 (d) 108 154 13
- 8.📅 The digits 07071985 are a date: day, month, year. Which chunking shows the date? (a) 07/0719/85 (b) 07/07/1985 (c) 0707/19/85 (d) 070/719/85
- 9.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it has fewer digits (c) three chunks, not ten (d) it is printed bigger
- 10.🔢 A 20-digit number is split into chunks of 4 digits each. How many chunks is that?
- 11.📅 The digits 07011971 are a date: day, month, year. Which chunking shows the date? (a) 070/119/71 (b) 0701/19/71 (c) 07/0119/71 (d) 07/01/1971
- 12.📅 The digits 28061982 are a date: day, month, year. Which chunking shows the date? (a) 280/619/82 (b) 2806/19/82 (c) 28/0619/82 (d) 28/06/1982
- 13.📅 The digits 08102022 are a date: day, month, year. Which chunking shows the date? (a) 08/1020/22 (b) 081/020/22 (c) 08/10/2022 (d) 0810/20/22
- 14.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 15.🔢 You want to remember the number 5519192211. Which chunked version keeps every digit in the same order? (a) 551 199 2211 (b) 551 919 92211 (c) 551 919 211 (d) 551 919 2211
- 16.📅 The digits 12081986 are a date: day, month, year. Which chunking shows the date? (a) 120/819/86 (b) 12/0819/86 (c) 12/08/1986 (d) 1208/19/86
- 17.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 18.🔢 What is chunking? (a) saying it backwards (b) splitting into groups (c) reading very fast (d) writing it twice
- 19.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 20.📅 The digits 06101980 are a date: day, month, year. Which chunking shows the date? (a) 061/019/80 (b) 06/1019/80 (c) 06/10/1980 (d) 0610/19/80
- 21.📅 The digits 25121964 are a date: day, month, year. Which chunking shows the date? (a) 2512/19/64 (b) 251/219/64 (c) 25/1219/64 (d) 25/12/1964
- 22.🔢 You want to remember the number 493849736065. Which chunked version keeps every digit in the same order? (a) 4938 4936 065 (b) 4938 4973 6065 (c) 4938 9473 6065 (d) 4938 4973 60655
- 23.🔢 You want to remember the number 646997416523. Which chunked version keeps every digit in the same order? (a) 6466 9974 16523 (b) 6469 9741 6523 (c) 6469 9741 523 (d) 6469 9741 6253
- 24.🔢 Which is a good way to chunk the year 1947? (a) 1 and 947 (b) 19 and 47 (c) 1 9 4 7 (d) 194 and 7
- 25.📅 The digits 17101958 are a date: day, month, year. Which chunking shows the date? (a) 17/10/1958 (b) 17/1019/58 (c) 1710/19/58 (d) 171/019/58
- 26.🔢 Instead of holding 11 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 27.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 28.🔢 Chunking works for… (a) numbers and letter lists (b) only pictures (c) only numbers (d) nothing at all
- 29.🔢 Instead of holding 8 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 30.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 31.🔢 You want to remember the number 7590569097. Which chunked version keeps every digit in the same order? (a) 579 056 9097 (b) 759 056 90977 (c) 759 056 907 (d) 759 056 9097
- 32.📅 The digits 15032010 are a date: day, month, year. Which chunking shows the date? (a) 15/0320/10 (b) 1503/20/10 (c) 150/320/10 (d) 15/03/2010
- 33.🔢 You want to remember the number 910319407416. Which chunked version keeps every digit in the same order? (a) 9103 1940 7416 (b) 9130 1940 7416 (c) 9131 9407 416 (d) 9110 3194 07416
- 34.🔢 You want to remember the number 6574663558. Which chunked version keeps every digit in the same order? (a) 657 466 3558 (b) 657 746 63558 (c) 657 466 5358 (d) 654 663 558
- 35.📅 The digits 25021980 are a date: day, month, year. Which chunking shows the date? (a) 25/02/1980 (b) 25/0219/80 (c) 2502/19/80 (d) 250/219/80
- 36.📅 The digits 07102015 are a date: day, month, year. Which chunking shows the date? (a) 071/020/15 (b) 07/10/2015 (c) 0710/20/15 (d) 07/1020/15
- 37.🔢 You want to remember the number 132906518. Which chunked version keeps every digit in the same order? (a) 132 960 518 (b) 132 065 18 (c) 132 906 518 (d) 133 290 6518
- 38.🔢 You want to remember the number 604176886414. Which chunked version keeps every digit in the same order? (a) 6017 6886 414 (b) 6041 7688 6414 (c) 6401 7688 6414 (d) 6041 7688 66414
- 39.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 40.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
Answer key
- 6
- 877 924 722
- 910 966 596
- 539 282 964
- means something to you
- 13/10/2003
- 100 815 413
- 07/07/1985
- three chunks, not ten
- 5
- 07/01/1971
- 28/06/1982
- 08/10/2022
- 5
- 551 919 2211
- 12/08/1986
- 2
- splitting into groups
- 3
- 06/10/1980
- 25/12/1964
- 4938 4973 6065
- 6469 9741 6523
- 19 and 47
- 17/10/1958
- 7
- 3
- numbers and letter lists
- 4
- 3
- 759 056 9097
- 15/03/2010
- 9103 1940 7416
- 657 466 3558
- 25/02/1980
- 07/10/2015
- 132 906 518
- 6041 7688 6414
- 9
- 8
Free memory techniques lessons, practice and worksheets at talentjr.in/memory-techniques-for-students