Calculation problem that strengthens to “5”_02@12

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It is a random problem of insect-eating calculation of combinations that add to 5, calculation of adding 5 to 1~5, subtracting something from 5, and subtracting 5 from numbers up to 10.

In addition to that, “02” added the calculation of subtracting 5 from the numbers up to 14 and adding 5 to the numbers 6~9.

There are 12 questions on one page. 200 pages. I don’t see the same problem on one page. 12 questions are randomly extracted from 34 questions.

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