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 4254793169. Which chunked version keeps every digit in the same order? (a) 425 473 9169 (b) 425 447 93169 (c) 425 479 3169 (d) 425 479 369
- 2.🔢 Chunking works for… (a) only numbers (b) only pictures (c) nothing at all (d) numbers and letter lists
- 3.🔢 You want to remember the number 5310632344. Which chunked version keeps every digit in the same order? (a) 310 632 344 (b) 531 036 2344 (c) 531 063 2344 (d) 531 066 32344
- 4.🔢 You want to remember the number 109510496013. Which chunked version keeps every digit in the same order? (a) 1051 0496 013 (b) 1095 1409 6013 (c) 1095 1049 6013 (d) 1095 1049 60013
- 5.🔢 Instead of holding 8 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 6.📅 The digits 21111951 are a date: day, month, year. Which chunking shows the date? (a) 21/1119/51 (b) 2111/19/51 (c) 21/11/1951 (d) 211/119/51
- 7.🔢 What is chunking? (a) writing it twice (b) splitting into groups (c) reading very fast (d) saying it backwards
- 8.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it is a smaller number (b) it is printed bigger (c) it has fewer digits (d) three chunks, not ten
- 9.📅 The digits 14121953 are a date: day, month, year. Which chunking shows the date? (a) 14/12/1953 (b) 141/219/53 (c) 1412/19/53 (d) 14/1219/53
- 10.🔢 You want to remember the number 150322749. Which chunked version keeps every digit in the same order? (a) 155 032 2749 (b) 153 227 49 (c) 150 322 749 (d) 150 327 249
- 11.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 12.📅 The digits 10121957 are a date: day, month, year. Which chunking shows the date? (a) 1012/19/57 (b) 10/12/1957 (c) 101/219/57 (d) 10/1219/57
- 13.🔢 A 6-digit number is split into chunks of 3 digits each. How many chunks is that?
- 14.🔢 You want to remember the number 4011376281. Which chunked version keeps every digit in the same order? (a) 011 376 281 (b) 401 137 6281 (c) 401 133 76281 (d) 401 137 6218
- 15.📅 The digits 12021954 are a date: day, month, year. Which chunking shows the date? (a) 1202/19/54 (b) 120/219/54 (c) 12/0219/54 (d) 12/02/1954
- 16.🔢 You want to remember the number 4778291006. Which chunked version keeps every digit in the same order? (a) 477 829 100 (b) 477 829 1060 (c) 477 782 91006 (d) 477 829 1006
- 17.🔢 A 15-digit number is split into chunks of 3 digits each. How many chunks is that?
- 18.🔢 You want to remember the number 226281608. Which chunked version keeps every digit in the same order? (a) 226 281 08 (b) 226 281 608 (c) 226 281 6008 (d) 222 681 608
- 19.🔢 You want to remember the number 1382181238. Which chunked version keeps every digit in the same order? (a) 138 821 81238 (b) 138 218 1238 (c) 138 211 238 (d) 183 218 1238
- 20.🔢 Instead of holding 9 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 21.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) changes daily (c) means something to you (d) is very long
- 22.🔢 You want to remember the number 2386583871. Which chunked version keeps every digit in the same order? (a) 238 583 871 (b) 238 658 38871 (c) 238 658 3871 (d) 238 658 3817
- 23.🔢 You want to remember the number 816237626. Which chunked version keeps every digit in the same order? (a) 816 237 662 (b) 816 237 626 (c) 812 376 26 (d) 816 623 7626
- 24.📅 The digits 16052009 are a date: day, month, year. Which chunking shows the date? (a) 160/520/09 (b) 16/0520/09 (c) 1605/20/09 (d) 16/05/2009
- 25.🔢 You want to remember the number 338152373. Which chunked version keeps every digit in the same order? (a) 338 153 273 (b) 338 153 73 (c) 338 815 2373 (d) 338 152 373
- 26.📅 The digits 20041983 are a date: day, month, year. Which chunking shows the date? (a) 20/04/1983 (b) 200/419/83 (c) 2004/19/83 (d) 20/0419/83
- 27.🔢 You want to remember the number 210034136. Which chunked version keeps every digit in the same order? (a) 210 034 136 (b) 201 034 136 (c) 210 034 1136 (d) 210 034 16
- 28.🔢 A 10-digit number is split into chunks of 2 digits each. How many chunks is that?
- 29.🔢 A 12-digit number is split into chunks of 3 digits each. How many chunks is that?
- 30.🔢 You want to remember the number 950818223329. Which chunked version keeps every digit in the same order? (a) 9508 1822 3239 (b) 9950 8182 23329 (c) 9508 1822 3329 (d) 9501 8223 329
- 31.🔢 You want to remember the number 3155576323. Which chunked version keeps every digit in the same order? (a) 315 556 323 (b) 315 557 6323 (c) 315 557 63233 (d) 315 557 3623
- 32.📅 The digits 02071990 are a date: day, month, year. Which chunking shows the date? (a) 02/0719/90 (b) 020/719/90 (c) 02/07/1990 (d) 0207/19/90
- 33.🔢 You want to remember the number 8341811421. Which chunked version keeps every digit in the same order? (a) 834 181 1421 (b) 831 811 421 (c) 834 188 11421 (d) 834 181 1241
- 34.🔢 A 6-digit number is split into chunks of 2 digits each. How many chunks is that?
- 35.🔢 You want to remember the number 1611559172. Which chunked version keeps every digit in the same order? (a) 111 559 172 (b) 161 155 9172 (c) 161 155 59172 (d) 161 155 9127
- 36.🔢 You want to remember the number 9185241247. Which chunked version keeps every digit in the same order? (a) 918 524 1247 (b) 915 241 247 (c) 981 524 1247 (d) 991 852 41247
- 37.🔢 A 4-digit number is split into chunks of 2 digits each. How many chunks is that?
- 38.🔢 Which is a good way to chunk the year 1947? (a) 1 9 4 7 (b) 194 and 7 (c) 1 and 947 (d) 19 and 47
- 39.📅 The digits 19082023 are a date: day, month, year. Which chunking shows the date? (a) 19/08/2023 (b) 19/0820/23 (c) 190/820/23 (d) 1908/20/23
- 40.🔢 You want to remember the number 9647622108. Which chunked version keeps every digit in the same order? (a) 964 762 2108 (b) 964 762 2018 (c) 966 476 22108 (d) 964 722 108
Answer key
- 425 479 3169
- numbers and letter lists
- 531 063 2344
- 1095 1049 6013
- 5
- 21/11/1951
- splitting into groups
- three chunks, not ten
- 14/12/1953
- 150 322 749
- 2
- 10/12/1957
- 2
- 401 137 6281
- 12/02/1954
- 477 829 1006
- 5
- 226 281 608
- 138 218 1238
- 6
- means something to you
- 238 658 3871
- 816 237 626
- 16/05/2009
- 338 152 373
- 20/04/1983
- 210 034 136
- 5
- 4
- 9508 1822 3329
- 315 557 6323
- 02/07/1990
- 834 181 1421
- 3
- 161 155 9172
- 918 524 1247
- 2
- 19 and 47
- 19/08/2023
- 964 762 2108
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