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Published byPatrick Russell Modified over 4 years ago

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Puzzle A Puzzle B

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Replace ? with + – x or ÷ so the results of each of the 3- 4- and 5-number calculations are 15 when working one step at a time from Left to Right (no brackets allowed): 6 ? 5 ? 2 = 15 2 ? 1 ? 5 = 15 5 ? 5 ? 5 ? 5 = 15 3 ? 3 ? 3 ? 3 = 15 2 ? 4 ? 6 ? 8 ? 10 = 15

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From the following six clues, find the values of the letters A to H. Each letter contains a different whole number in the range 1-30: A is one-third of C and one-quarter of G G is ten lower than H H is double the value of F, but four lower than B B is six higher than D D is double the value of E the value of E is lower than G

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To be able to use partitioning to double or halve numbers.

To be able to use partitioning to double or halve numbers.

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