Lấy (13.39-12.51):0.01coongj 1 bằng 89
có số các số là
(13,39-12,51):0,01+1=89(số)
tik nha bạn 
nguyen thi huong tra yêu quý!
hay cho biet co bao nhieu so thap phan co 2 chu so o phan thap phan lon hon 12.5 va nho hon 13.4
hay cho biet co bao nhieu so thap phan co 2 chu so o phan thap phan lon hon 12.5 va nho hon 13.4
hay cho biet co tat ca bao nhieu so thap phan co2 chu so o phan thap phan ma so do lon hon 12.5 va nho hon 13.4
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co bao nhieu so thap phan lon hon 3,1 va nho hon 3,2 ma co 2 chu so o phan thap phan
hy cho biet co bao nhieu so thap phan co 2 chu so o phan thap phan lon hon 8,6 va nho hon 9,9
hay cho bit co bao nhieu so thap phan co 2 chu so o phan thap phan ma lon hon 8 va nho hon 9
co bao nhieu so thap phan co 2 chu so o hang thap phan lon hon 99 va nho hon 100
hay cho biet co bao nhieu so thap phan co 3 chu so o phan thap phan ma lon hon 9 va hon 10
