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Mathematical probability of grade one in junior high school
The two-digit number consisting of 1, 2, 3, 4, 5, and 6 is 6*5=30, of which 30/2= 15 is more than ten digits. The probability of drawing these numbers is (1/2) * (9/65438

Draw another number 15 (ten digits are greater than single digits), because the positions of large numbers and decimals should be interchanged, so the probability is still 3/ 10, that is, the probability of finding is (3/ 10)+(3/ 10)=3/5.