HOC24
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Môn học
Chủ đề / Chương
Bài học
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mơn 2 bạn
Số đầu là : 105
Số cuối là : 990
Khoảng cách : 15
Có số các số tự nhiên có ba chữ số vừa chia hết 3 vừa chia hết cho 5 là :
( 990 - 105 ) : 15 + 1 = 60 ( số )
Đáp số : 60 số