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14-05-2018
Mathematics

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Apply the commutative property to 13 × 7 × 21 to rearrange the terms and still get the same solution

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sqdancefan sqdancefan

14-05-2018

The given terms can be arranged in 3! = 6 ways. The other 5 are ...
13 × 21 × 7
7 × 13 × 21
7 × 21 × 13
21 × 7 × 13
21 × 13 × 7
Any of these arrangements will give the same answer, 1,911.

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