If we write all of the whole numbers from 10 through 99 and cross out any number in which the first or second digit is divisible by 2 (for example, 41 is crossed out as 4 is divisible by 2 and 36 is crossed out as 6 is divisible by 2), how many numbers are crossed out?
Trả lời cả tiếng anh cả tiếng việt nhé, ai đúng mik k cho
=60 mik k chắc đâu, tính bừa