The significance of missing cards 1 to 13 in poker games.

The analysis is as follows:

∫ They prepared 13 cards, from A( 1) to K. ∴ * * There are 13 possible results. ∵ It is stipulated that A draws cards from 10 to K. * * There are four situations, and 65433 is drawn.

∴P (A wins) = 4 13, P (B wins) = 9 13, ∫p(a wins) ≠P (B wins), ∴ The game is unfair to both parties.

The idea of solving complex application problems is composed of two or more interrelated simple application problems.

1, understanding the meaning of the question is to find out the known conditions and requirements in the application question.

2. Analyzing the quantitative relationship means analyzing the relationship between known quantity and unknown quantity, known quantity and unknown quantity, finding a solution to the problem, and determining what is first, then what is best.

3, column solution, that is, according to the analysis, list the formula and calculate.

4. Check the calculation, give the answer, that is, check whether the solution process is reasonable, whether the result is correct, whether it is consistent with the original question, and finally write the answer.