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.📅 The digits 21022017 are a date: day, month, year. Which chunking shows the date? (a) 210/220/17 (b) 21/02/2017 (c) 21/0220/17 (d) 2102/20/17
- 2.🔢 You want to remember the number 939522609822. Which chunked version keeps every digit in the same order? (a) 9339 5226 09822 (b) 9392 2609 822 (c) 9395 2260 9822 (d) 9395 2260 8922
- 3.🔢 Instead of holding 9 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 4.🔢 You want to remember the number 6181228391. Which chunked version keeps every digit in the same order? (a) 611 812 28391 (b) 611 228 391 (c) 618 122 8391 (d) 618 122 8319
- 5.🔢 You want to remember the number 226652341. Which chunked version keeps every digit in the same order? (a) 226 653 241 (b) 226 652 341 (c) 266 523 41 (d) 222 665 2341
- 6.🔢 You want to remember the number 2419898143. Which chunked version keeps every digit in the same order? (a) 214 989 8143 (b) 241 988 143 (c) 241 998 98143 (d) 241 989 8143
- 7.🔢 You want to remember the number 719612645440. Which chunked version keeps every digit in the same order? (a) 7961 2645 440 (b) 7119 6126 45440 (c) 7196 1246 5440 (d) 7196 1264 5440
- 8.🔢 You want to remember the number 791421198. Which chunked version keeps every digit in the same order? (a) 791 211 98 (b) 791 241 198 (c) 791 421 198 (d) 791 421 1198
- 9.🔢 You want to remember the number 330339070. Which chunked version keeps every digit in the same order? (a) 330 339 070 (b) 303 390 70 (c) 303 339 070 (d) 330 333 9070
- 10.🔢 A 8-digit number is split into chunks of 2 digits each. How many chunks is that?
- 11.🔢 You want to remember the number 926214680. Which chunked version keeps every digit in the same order? (a) 926 216 80 (b) 926 214 680 (c) 926 214 6880 (d) 926 241 680
- 12.🔢 Instead of holding 12 separate digits, you hold them as 4 chunks. How many fewer things do you hold in mind?
- 13.🔢 You want to remember the number 471087981132. Which chunked version keeps every digit in the same order? (a) 4710 8798 11132 (b) 4710 8798 1132 (c) 4710 7898 1132 (d) 4708 7981 132
- 14.🔢 Why is 987 654 3210 easier to hold than 9876543210? (a) it has fewer digits (b) it is printed bigger (c) three chunks, not ten (d) it is a smaller number
- 15.🔢 A 8-digit number is split into chunks of 4 digits each. How many chunks is that?
- 16.🔢 You want to remember the number 731647745. Which chunked version keeps every digit in the same order? (a) 736 477 45 (b) 731 647 745 (c) 731 647 7745 (d) 731 647 475
- 17.📅 The digits 17021975 are a date: day, month, year. Which chunking shows the date? (a) 1702/19/75 (b) 17/02/1975 (c) 17/0219/75 (d) 170/219/75
- 18.🔢 You want to remember the number 818023085223. Which chunked version keeps every digit in the same order? (a) 8180 2385 223 (b) 8180 2308 5223 (c) 8180 2230 85223 (d) 1880 2308 5223
- 19.📅 The digits 19111950 are a date: day, month, year. Which chunking shows the date? (a) 19/1119/50 (b) 19/11/1950 (c) 191/119/50 (d) 1911/19/50
- 20.🔢 You want to remember the number 634911462. Which chunked version keeps every digit in the same order? (a) 663 491 1462 (b) 634 191 462 (c) 634 911 462 (d) 349 114 62
- 21.🔢 You want to remember the number 465083019881. Which chunked version keeps every digit in the same order? (a) 4650 8301 881 (b) 4650 8301 8981 (c) 4650 8301 9881 (d) 4665 0830 19881
- 22.🔢 What is chunking? (a) reading very fast (b) splitting into groups (c) writing it twice (d) saying it backwards
- 23.🔢 You want to remember the number 360916581413. Which chunked version keeps every digit in the same order? (a) 3601 9658 1413 (b) 3660 9165 81413 (c) 3609 1651 413 (d) 3609 1658 1413
- 24.📅 The digits 20121969 are a date: day, month, year. Which chunking shows the date? (a) 20/12/1969 (b) 201/219/69 (c) 20/1219/69 (d) 2012/19/69
- 25.🔢 You want to remember the number 817141062. Which chunked version keeps every digit in the same order? (a) 817 141 062 (b) 817 144 1062 (c) 811 741 062 (d) 817 140 62
- 26.🔢 You want to remember the number 9024738301. Which chunked version keeps every digit in the same order? (a) 092 473 8301 (b) 902 473 38301 (c) 902 438 301 (d) 902 473 8301
- 27.🔢 You want to remember the number 331536251441. Which chunked version keeps every digit in the same order? (a) 3315 3625 1441 (b) 3315 3362 51441 (c) 3315 3651 441 (d) 3313 5625 1441
- 28.🔢 You want to remember the number 959401719. Which chunked version keeps every digit in the same order? (a) 959 407 19 (b) 959 401 719 (c) 959 401 179 (d) 959 401 7119
- 29.🔢 You want to remember the number 871795286434. Which chunked version keeps every digit in the same order? (a) 8717 9522 86434 (b) 8717 9528 4634 (c) 8717 9528 6434 (d) 8717 9526 434
- 30.🔢 Chunking works for… (a) nothing at all (b) numbers and letter lists (c) only pictures (d) only numbers
- 31.🔢 A chunk is easiest to keep when it… (a) has no pattern (b) means something to you (c) changes daily (d) is very long
- 32.🔢 You want to remember the number 855015469730. Which chunked version keeps every digit in the same order? (a) 8550 1549 6730 (b) 8550 1546 973 (c) 8550 1546 97730 (d) 8550 1546 9730
- 33.🔢 You want to remember the number 174194756. Which chunked version keeps every digit in the same order? (a) 174 194 756 (b) 741 947 56 (c) 117 419 4756 (d) 147 194 756
- 34.🔢 You want to remember the number 690454712261. Which chunked version keeps every digit in the same order? (a) 6904 5471 2261 (b) 6904 5471 261 (c) 6904 5741 2261 (d) 6990 4547 12261
- 35.🔢 You want to remember the number 363767710925. Which chunked version keeps every digit in the same order? (a) 3637 6771 0925 (b) 3363 7677 10925 (c) 6337 6771 0925 (d) 3636 7710 925
- 36.🔢 Instead of holding 12 separate digits, you hold them as 3 chunks. How many fewer things do you hold in mind?
- 37.🔢 You want to remember the number 3182439786. Which chunked version keeps every digit in the same order? (a) 318 249 3786 (b) 182 439 786 (c) 318 243 9786 (d) 318 243 39786
- 38.🔢 You want to remember the number 7238976393. Which chunked version keeps every digit in the same order? (a) 723 976 393 (b) 723 897 63393 (c) 723 897 6393 (d) 723 879 6393
- 39.🔢 You want to remember the number 7832754437. Which chunked version keeps every digit in the same order? (a) 732 754 437 (b) 782 375 4437 (c) 783 275 44437 (d) 783 275 4437
- 40.📅 The digits 15031961 are a date: day, month, year. Which chunking shows the date? (a) 150/319/61 (b) 1503/19/61 (c) 15/0319/61 (d) 15/03/1961
Answer key
- 21/02/2017
- 9395 2260 9822
- 5
- 618 122 8391
- 226 652 341
- 241 989 8143
- 7196 1264 5440
- 791 421 198
- 330 339 070
- 4
- 926 214 680
- 8
- 4710 8798 1132
- three chunks, not ten
- 2
- 731 647 745
- 17/02/1975
- 8180 2308 5223
- 19/11/1950
- 634 911 462
- 4650 8301 9881
- splitting into groups
- 3609 1658 1413
- 20/12/1969
- 817 141 062
- 902 473 8301
- 3315 3625 1441
- 959 401 719
- 8717 9528 6434
- numbers and letter lists
- means something to you
- 8550 1546 9730
- 174 194 756
- 6904 5471 2261
- 3637 6771 0925
- 9
- 318 243 9786
- 723 897 6393
- 783 275 4437
- 15/03/1961
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