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 590858329. Which chunked version keeps every digit in the same order? (a) 590 858 329 (b) 950 858 329 (c) 590 858 3299 (d) 598 583 29
- 2.🔢 You want to remember the number 711369670124. Which chunked version keeps every digit in the same order? (a) 7113 6967 014 (b) 7113 6967 0124 (c) 7111 3696 70124 (d) 7116 3967 0124
- 3.🔢 You want to remember the number 155904226098. Which chunked version keeps every digit in the same order? (a) 1559 0426 098 (b) 1559 0422 6098 (c) 1559 0422 66098 (d) 1550 9422 6098
- 4.🔢 You want to remember the number 9443778431. Which chunked version keeps every digit in the same order? (a) 944 737 8431 (b) 944 337 78431 (c) 944 378 431 (d) 944 377 8431
- 5.🔢 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
- 6.🔢 Chunking works for… (a) only pictures (b) numbers and letter lists (c) nothing at all (d) only numbers
- 7.📅 The digits 16122010 are a date: day, month, year. Which chunking shows the date? (a) 16/12/2010 (b) 161/220/10 (c) 16/1220/10 (d) 1612/20/10
- 8.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) changes daily (c) means something to you (d) is very long
- 9.🔢 You want to remember the number 212829809. Which chunked version keeps every digit in the same order? (a) 212 829 809 (b) 212 829 089 (c) 211 282 9809 (d) 228 298 09
- 10.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 11.🔢 Instead of holding 10 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 12.🔢 You want to remember the number 466921189. Which chunked version keeps every digit in the same order? (a) 466 921 18 (b) 466 291 189 (c) 466 992 1189 (d) 466 921 189
- 13.🔢 You want to remember the number 8500006357. Which chunked version keeps every digit in the same order? (a) 850 000 3657 (b) 850 000 06357 (c) 850 000 635 (d) 850 000 6357
- 14.🔢 Which is a good way to chunk the year 1947? (a) 194 and 7 (b) 1 9 4 7 (c) 1 and 947 (d) 19 and 47
- 15.🔢 You want to remember the number 968420230480. Which chunked version keeps every digit in the same order? (a) 9684 2023 04480 (b) 9842 0230 480 (c) 9684 2023 0480 (d) 9684 2203 0480
- 16.🔢 You want to remember the number 211175600. Which chunked version keeps every digit in the same order? (a) 211 175 600 (b) 121 175 600 (c) 211 175 6600 (d) 211 175 60
- 17.🔢 You want to remember the number 577261753078. Which chunked version keeps every digit in the same order? (a) 5776 2175 3078 (b) 5772 6175 3078 (c) 5772 6175 378 (d) 5577 2617 53078
- 18.🔢 You want to remember the number 620916483. Which chunked version keeps every digit in the same order? (a) 602 916 483 (b) 620 914 83 (c) 620 916 483 (d) 662 091 6483
- 19.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 20.📅 The digits 28101973 are a date: day, month, year. Which chunking shows the date? (a) 281/019/73 (b) 28/10/1973 (c) 2810/19/73 (d) 28/1019/73
- 21.📅 The digits 15122016 are a date: day, month, year. Which chunking shows the date? (a) 151/220/16 (b) 1512/20/16 (c) 15/1220/16 (d) 15/12/2016
- 22.🔢 You want to remember the number 856106404. Which chunked version keeps every digit in the same order? (a) 856 106 4004 (b) 856 106 404 (c) 856 106 40 (d) 586 106 404
- 23.🔢 You want to remember the number 813033391. Which chunked version keeps every digit in the same order? (a) 130 333 91 (b) 813 033 3391 (c) 813 033 391 (d) 831 033 391
- 24.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 25.🔢 You want to remember the number 4815998159. Which chunked version keeps every digit in the same order? (a) 481 599 8159 (b) 485 998 159 (c) 488 159 98159 (d) 481 598 9159
- 26.📅 The digits 21062020 are a date: day, month, year. Which chunking shows the date? (a) 2106/20/20 (b) 210/620/20 (c) 21/0620/20 (d) 21/06/2020
- 27.🔢 A 12-digit number is split into chunks of 4 digits each. How many chunks is that?
- 28.📅 The digits 19112011 are a date: day, month, year. Which chunking shows the date? (a) 1911/20/11 (b) 19/1120/11 (c) 191/120/11 (d) 19/11/2011
- 29.🔢 You want to remember the number 928990973. Which chunked version keeps every digit in the same order? (a) 982 990 973 (b) 928 990 93 (c) 928 999 0973 (d) 928 990 973
- 30.📅 The digits 26091963 are a date: day, month, year. Which chunking shows the date? (a) 260/919/63 (b) 26/0919/63 (c) 2609/19/63 (d) 26/09/1963
- 31.📅 The digits 26071951 are a date: day, month, year. Which chunking shows the date? (a) 2607/19/51 (b) 26/07/1951 (c) 260/719/51 (d) 26/0719/51
- 32.🔢 You want to remember the number 763086374. Which chunked version keeps every digit in the same order? (a) 736 086 374 (b) 763 008 6374 (c) 763 086 74 (d) 763 086 374
- 33.📅 The digits 18052003 are a date: day, month, year. Which chunking shows the date? (a) 18/0520/03 (b) 180/520/03 (c) 18/05/2003 (d) 1805/20/03
- 34.🔢 A 9-digit number is split into chunks of 3 digits each. How many chunks is that?
- 35.🔢 Instead of holding 11 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 36.🔢 A 16-digit number is split into chunks of 4 digits each. How many chunks is that?
- 37.🔢 Instead of holding 10 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 38.📅 The digits 25121956 are a date: day, month, year. Which chunking shows the date? (a) 25/1219/56 (b) 25/12/1956 (c) 2512/19/56 (d) 251/219/56
- 39.📅 The digits 13102020 are a date: day, month, year. Which chunking shows the date? (a) 13/10/2020 (b) 131/020/20 (c) 13/1020/20 (d) 1310/20/20
- 40.🔢 You want to remember the number 3068779509. Which chunked version keeps every digit in the same order? (a) 306 877 79509 (b) 306 877 9509 (c) 306 879 7509 (d) 306 879 509
Answer key
- 590 858 329
- 7113 6967 0124
- 1559 0422 6098
- 944 377 8431
- three chunks, not ten
- numbers and letter lists
- 16/12/2010
- means something to you
- 212 829 809
- 5
- 7
- 466 921 189
- 850 000 6357
- 19 and 47
- 9684 2023 0480
- 211 175 600
- 5772 6175 3078
- 620 916 483
- 2
- 28/10/1973
- 15/12/2016
- 856 106 404
- 813 033 391
- 5
- 481 599 8159
- 21/06/2020
- 3
- 19/11/2011
- 928 990 973
- 26/09/1963
- 26/07/1951
- 763 086 374
- 18/05/2003
- 3
- 8
- 4
- 6
- 25/12/1956
- 13/10/2020
- 306 877 9509
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