a 100, 1000 ,10 000
b 105 ,150, 510
c 2055, 5053 ,5539
Các câu hỏi tương tự
a)Co bao nhieu so tu nhien chia het cho 4 gom 4 chu so,chu so tan cung bang 2?
b)Co bao nhieu so tu nhien co 3 chu so trong do co dung mot chu so 5?
Tu 1 den 99 co cao nhieu so chau it nhat mot chu so 2
Bai 2 Trong cac so tu nhien co 3 chu so co bao nhieu so
a) CHua dung mot chu so 4
b) Chua dung hai chu so 4
co bao nhieu so tu nhien co 4 chu so ma trong do co dung 2 chu so 3
Câu 1:so phan tu cua tap hop cac so tu nhien chan lon hon 3 va nho hon 2000
Câu 2:so phan tu cua tap hop cac so tu nhien chan khong vuot qua 30 la
Câu 3 co bao nhieu so tu nhien co hai chu so trong do chu so hang chuc nho hon chu so hang don vi la 5 ?
Câu 4:so phan tu cua tap hop cac so tu nhien khong vuot qua 20 la
Câu 5:cho tap hop M={5;8;9;1986;2010}co bao nhieu tap hop con cua M gpm nhung so chan?
trong cac so tu nhien co bao nhieu so co 3 chu so chua chu so 9
- tim so chu so chan co 4 chu so
- viet tat ca cac so tu 100 den 999phai dung bao nhieu chuvso 9
-co bao nhieu so le co 3 chu so
- viet 1000 sdo tu nyhien dau tien hoi chu so 3 cco mat bao nhieu lan
-viet tap hop cac so tu nhien co 2 chu so trong do a ) chu so hang chuc nho hon hang don vi la 4 b) chu so hang chuc gap 3 lan chu so hang don vi c) chu so hang chuc nho hon chu so hang don vi ( tong 2 chu so = 12)
co bao nhieu so tu nhien co 3 chu so chia het cho 9
co bao nhieu so tu nhien co 3 chu so chia 5 du 1
1) cho 5 chu so khac nhau voi cung ca 5 chu so nay co the lap duoc bao nhieu so co 5 chu so
2) viet cac so tu nhien co 4 chu so trong do co hai chu so 3, mot chu so 2va mot chu so 1
3)tim so tu nhien co tan cung bang 3 biet rang neu xoa chu so hang don vi thi so do giam di 1992 don vi
co bao nhieu so tu nhien co 2 chu so trong do chu so hang chuc nho hon chu so hang don vi la 5 ?